21835560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 70531200

約数和(自身を除く): 48695640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 61, 76, 95, 114, 120, 122, 152, 157, 183, 190, 228, 244, 285, 305, 314, 366, 380, 456, 471, 488, 570, 610, 628, 732, 760, 785, 915, 942, 1140, 1159, 1220, 1256, 1464, 1570, 1830, 1884, 2280, 2318, 2355, 2440, 2983, 3140, 3477, 3660, 3768, 4636, 4710, 5795, 5966, 6280, 6954, 7320, 8949, 9272, 9420, 9577, 11590, 11932, 13908, 14915, 17385, 17898, 18840, 19154, 23180, 23864, 27816, 28731, 29830, 34770, 35796, 38308, 44745, 46360, 47885, 57462, 59660, 69540, 71592, 76616, 89490, 95770, 114924, 119320, 139080, 143655, 178980, 181963, 191540, 229848, 287310, 357960, 363926, 383080, 545889, 574620, 727852, 909815, 1091778, 1149240, 1455704, 1819630, 2183556, 2729445, 3639260, 4367112, 5458890, 7278520, 10917780, 21835560]

約数ペア:

[(1, 21835560), (2, 10917780), (3, 7278520), (4, 5458890), (5, 4367112), (6, 3639260), (8, 2729445), (10, 2183556), (12, 1819630), (15, 1455704), (19, 1149240), (20, 1091778), (24, 909815), (30, 727852), (38, 574620), (40, 545889), (57, 383080), (60, 363926), (61, 357960), (76, 287310), (95, 229848), (114, 191540), (120, 181963), (122, 178980), (152, 143655), (157, 139080), (183, 119320), (190, 114924), (228, 95770), (244, 89490), (285, 76616), (305, 71592), (314, 69540), (366, 59660), (380, 57462), (456, 47885), (471, 46360), (488, 44745), (570, 38308), (610, 35796), (628, 34770), (732, 29830), (760, 28731), (785, 27816), (915, 23864), (942, 23180), (1140, 19154), (1159, 18840), (1220, 17898), (1256, 17385), (1464, 14915), (1570, 13908), (1830, 11932), (1884, 11590), (2280, 9577), (2318, 9420), (2355, 9272), (2440, 8949), (2983, 7320), (3140, 6954), (3477, 6280), (3660, 5966), (3768, 5795), (4636, 4710)]