21568410

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:197

約数の個数: 128

約数和(自身を含む): 63037440

約数和(自身を除く): 41469030

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 37, 45, 51, 54, 74, 85, 90, 102, 111, 127, 135, 153, 170, 185, 222, 254, 255, 270, 306, 333, 370, 381, 459, 510, 555, 629, 635, 666, 762, 765, 918, 999, 1110, 1143, 1258, 1270, 1530, 1665, 1887, 1905, 1998, 2159, 2286, 2295, 3145, 3330, 3429, 3774, 3810, 4318, 4590, 4699, 4995, 5661, 5715, 6290, 6477, 6858, 9398, 9435, 9990, 10795, 11322, 11430, 12954, 14097, 16983, 17145, 18870, 19431, 21590, 23495, 28194, 28305, 32385, 33966, 34290, 38862, 42291, 46990, 56610, 58293, 64770, 70485, 79883, 84582, 84915, 97155, 116586, 126873, 140970, 159766, 169830, 194310, 211455, 239649, 253746, 291465, 399415, 422910, 479298, 582930, 634365, 718947, 798830, 1198245, 1268730, 1437894, 2156841, 2396490, 3594735, 4313682, 7189470, 10784205, 21568410]

約数ペア:

[(1, 21568410), (2, 10784205), (3, 7189470), (5, 4313682), (6, 3594735), (9, 2396490), (10, 2156841), (15, 1437894), (17, 1268730), (18, 1198245), (27, 798830), (30, 718947), (34, 634365), (37, 582930), (45, 479298), (51, 422910), (54, 399415), (74, 291465), (85, 253746), (90, 239649), (102, 211455), (111, 194310), (127, 169830), (135, 159766), (153, 140970), (170, 126873), (185, 116586), (222, 97155), (254, 84915), (255, 84582), (270, 79883), (306, 70485), (333, 64770), (370, 58293), (381, 56610), (459, 46990), (510, 42291), (555, 38862), (629, 34290), (635, 33966), (666, 32385), (762, 28305), (765, 28194), (918, 23495), (999, 21590), (1110, 19431), (1143, 18870), (1258, 17145), (1270, 16983), (1530, 14097), (1665, 12954), (1887, 11430), (1905, 11322), (1998, 10795), (2159, 9990), (2286, 9435), (2295, 9398), (3145, 6858), (3330, 6477), (3429, 6290), (3774, 5715), (3810, 5661), (4318, 4995), (4590, 4699)]