21525540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:269

約数の個数: 96

約数和(自身を含む): 63504000

約数和(自身を除く): 41978460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 89, 116, 139, 145, 174, 178, 267, 278, 290, 348, 356, 417, 435, 445, 534, 556, 580, 695, 834, 870, 890, 1068, 1335, 1390, 1668, 1740, 1780, 2085, 2581, 2670, 2780, 4031, 4170, 5162, 5340, 7743, 8062, 8340, 10324, 12093, 12371, 12905, 15486, 16124, 20155, 24186, 24742, 25810, 30972, 37113, 38715, 40310, 48372, 49484, 51620, 60465, 61855, 74226, 77430, 80620, 120930, 123710, 148452, 154860, 185565, 241860, 247420, 358759, 371130, 717518, 742260, 1076277, 1435036, 1793795, 2152554, 3587590, 4305108, 5381385, 7175180, 10762770, 21525540]

約数ペア:

[(1, 21525540), (2, 10762770), (3, 7175180), (4, 5381385), (5, 4305108), (6, 3587590), (10, 2152554), (12, 1793795), (15, 1435036), (20, 1076277), (29, 742260), (30, 717518), (58, 371130), (60, 358759), (87, 247420), (89, 241860), (116, 185565), (139, 154860), (145, 148452), (174, 123710), (178, 120930), (267, 80620), (278, 77430), (290, 74226), (348, 61855), (356, 60465), (417, 51620), (435, 49484), (445, 48372), (534, 40310), (556, 38715), (580, 37113), (695, 30972), (834, 25810), (870, 24742), (890, 24186), (1068, 20155), (1335, 16124), (1390, 15486), (1668, 12905), (1740, 12371), (1780, 12093), (2085, 10324), (2581, 8340), (2670, 8062), (2780, 7743), (4031, 5340), (4170, 5162)]