21163428

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4111}}^1$

素因数の和:4145

約数の個数: 72

約数和(自身を含む): 62864256

約数和(自身を除く): 41700828

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 198, 234, 286, 396, 429, 468, 572, 858, 1287, 1716, 2574, 4111, 5148, 8222, 12333, 16444, 24666, 36999, 45221, 49332, 53443, 73998, 90442, 106886, 135663, 147996, 160329, 180884, 213772, 271326, 320658, 406989, 480987, 542652, 587873, 641316, 813978, 961974, 1175746, 1627956, 1763619, 1923948, 2351492, 3527238, 5290857, 7054476, 10581714, 21163428]

約数ペア:

[(1, 21163428), (2, 10581714), (3, 7054476), (4, 5290857), (6, 3527238), (9, 2351492), (11, 1923948), (12, 1763619), (13, 1627956), (18, 1175746), (22, 961974), (26, 813978), (33, 641316), (36, 587873), (39, 542652), (44, 480987), (52, 406989), (66, 320658), (78, 271326), (99, 213772), (117, 180884), (132, 160329), (143, 147996), (156, 135663), (198, 106886), (234, 90442), (286, 73998), (396, 53443), (429, 49332), (468, 45221), (572, 36999), (858, 24666), (1287, 16444), (1716, 12333), (2574, 8222), (4111, 5148)]