21419658

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{383}}^1$

素因数の和:643

約数の個数: 48

約数和(自身を含む): 50319360

約数和(自身を除く): 28899702

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 239, 383, 478, 717, 766, 1149, 1434, 2151, 2298, 3107, 3447, 4302, 4979, 6214, 6894, 9321, 9958, 14937, 18642, 27963, 29874, 44811, 55926, 89622, 91537, 183074, 274611, 549222, 823833, 1189981, 1647666, 2379962, 3569943, 7139886, 10709829, 21419658]

約数ペア:

[(1, 21419658), (2, 10709829), (3, 7139886), (6, 3569943), (9, 2379962), (13, 1647666), (18, 1189981), (26, 823833), (39, 549222), (78, 274611), (117, 183074), (234, 91537), (239, 89622), (383, 55926), (478, 44811), (717, 29874), (766, 27963), (1149, 18642), (1434, 14937), (2151, 9958), (2298, 9321), (3107, 6894), (3447, 6214), (4302, 4979)]