21374763085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{463}}^1\times {\mathrm{1019}}^1$

素因数の和:1558

約数の個数: 64

約数和(自身を含む): 30055173120

約数和(自身を除く): 8680410035

約数列:

[1, 5, 13, 17, 41, 65, 85, 205, 221, 463, 533, 697, 1019, 1105, 2315, 2665, 3485, 5095, 6019, 7871, 9061, 13247, 17323, 18983, 30095, 39355, 41779, 45305, 66235, 86615, 94915, 102323, 208895, 225199, 246779, 322711, 471797, 511615, 543127, 710243, 1125995, 1233895, 1613555, 2358985, 2715635, 3551215, 4195243, 6133361, 8020549, 9233159, 19343677, 20976215, 30666805, 40102745, 46165795, 96718385, 104267137, 251467801, 328842509, 521335685, 1257339005, 1644212545, 4274952617, 21374763085]

約数ペア:

[(1, 21374763085), (5, 4274952617), (13, 1644212545), (17, 1257339005), (41, 521335685), (65, 328842509), (85, 251467801), (205, 104267137), (221, 96718385), (463, 46165795), (533, 40102745), (697, 30666805), (1019, 20976215), (1105, 19343677), (2315, 9233159), (2665, 8020549), (3485, 6133361), (5095, 4195243), (6019, 3551215), (7871, 2715635), (9061, 2358985), (13247, 1613555), (17323, 1233895), (18983, 1125995), (30095, 710243), (39355, 543127), (41779, 511615), (45305, 471797), (66235, 322711), (86615, 246779), (94915, 225199), (102323, 208895)]