18790746

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:455

約数の個数: 64

約数和(自身を含む): 44126208

約数和(自身を除く): 25335462

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 37, 39, 51, 74, 78, 102, 111, 221, 222, 383, 442, 481, 629, 663, 766, 962, 1149, 1258, 1326, 1443, 1887, 2298, 2886, 3774, 4979, 6511, 8177, 9958, 13022, 14171, 14937, 16354, 19533, 24531, 28342, 29874, 39066, 42513, 49062, 84643, 85026, 169286, 184223, 240907, 253929, 368446, 481814, 507858, 552669, 722721, 1105338, 1445442, 3131791, 6263582, 9395373, 18790746]

約数ペア:

[(1, 18790746), (2, 9395373), (3, 6263582), (6, 3131791), (13, 1445442), (17, 1105338), (26, 722721), (34, 552669), (37, 507858), (39, 481814), (51, 368446), (74, 253929), (78, 240907), (102, 184223), (111, 169286), (221, 85026), (222, 84643), (383, 49062), (442, 42513), (481, 39066), (629, 29874), (663, 28342), (766, 24531), (962, 19533), (1149, 16354), (1258, 14937), (1326, 14171), (1443, 13022), (1887, 9958), (2298, 8177), (2886, 6511), (3774, 4979)]