21062640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:215

約数の個数: 160

約数和(自身を含む): 71424000

約数和(自身を除く): 50361360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 31, 38, 40, 48, 57, 60, 62, 76, 80, 93, 95, 114, 120, 124, 149, 152, 155, 186, 190, 228, 240, 248, 285, 298, 304, 310, 372, 380, 447, 456, 465, 496, 570, 589, 596, 620, 744, 745, 760, 894, 912, 930, 1140, 1178, 1192, 1240, 1488, 1490, 1520, 1767, 1788, 1860, 2235, 2280, 2356, 2384, 2480, 2831, 2945, 2980, 3534, 3576, 3720, 4470, 4560, 4619, 4712, 5662, 5890, 5960, 7068, 7152, 7440, 8493, 8835, 8940, 9238, 9424, 11324, 11780, 11920, 13857, 14136, 14155, 16986, 17670, 17880, 18476, 22648, 23095, 23560, 27714, 28272, 28310, 33972, 35340, 35760, 36952, 42465, 45296, 46190, 47120, 55428, 56620, 67944, 69285, 70680, 73904, 84930, 87761, 92380, 110856, 113240, 135888, 138570, 141360, 169860, 175522, 184760, 221712, 226480, 263283, 277140, 339720, 351044, 369520, 438805, 526566, 554280, 679440, 702088, 877610, 1053132, 1108560, 1316415, 1404176, 1755220, 2106264, 2632830, 3510440, 4212528, 5265660, 7020880, 10531320, 21062640]

約数ペア:

[(1, 21062640), (2, 10531320), (3, 7020880), (4, 5265660), (5, 4212528), (6, 3510440), (8, 2632830), (10, 2106264), (12, 1755220), (15, 1404176), (16, 1316415), (19, 1108560), (20, 1053132), (24, 877610), (30, 702088), (31, 679440), (38, 554280), (40, 526566), (48, 438805), (57, 369520), (60, 351044), (62, 339720), (76, 277140), (80, 263283), (93, 226480), (95, 221712), (114, 184760), (120, 175522), (124, 169860), (149, 141360), (152, 138570), (155, 135888), (186, 113240), (190, 110856), (228, 92380), (240, 87761), (248, 84930), (285, 73904), (298, 70680), (304, 69285), (310, 67944), (372, 56620), (380, 55428), (447, 47120), (456, 46190), (465, 45296), (496, 42465), (570, 36952), (589, 35760), (596, 35340), (620, 33972), (744, 28310), (745, 28272), (760, 27714), (894, 23560), (912, 23095), (930, 22648), (1140, 18476), (1178, 17880), (1192, 17670), (1240, 16986), (1488, 14155), (1490, 14136), (1520, 13857), (1767, 11920), (1788, 11780), (1860, 11324), (2235, 9424), (2280, 9238), (2356, 8940), (2384, 8835), (2480, 8493), (2831, 7440), (2945, 7152), (2980, 7068), (3534, 5960), (3576, 5890), (3720, 5662), (4470, 4712), (4560, 4619)]