840556521

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{337}}^1$

素因数の和:492

約数の個数: 80

約数和(自身を含む): 1484106624

約数和(自身を除く): 643550103

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 83, 159, 189, 249, 337, 371, 477, 567, 581, 747, 1011, 1113, 1431, 1743, 2241, 2359, 3033, 3339, 4293, 4399, 5229, 6723, 7077, 9099, 10017, 13197, 15687, 17861, 21231, 27297, 27971, 30051, 30793, 39591, 47061, 53583, 63693, 83913, 92379, 118773, 125027, 160749, 191079, 195797, 251739, 277137, 356319, 375081, 482247, 587391, 755217, 831411, 1125243, 1446741, 1482463, 1762173, 2265651, 2494233, 3375729, 4447389, 5286519, 10127187, 10377241, 13342167, 15859557, 31131723, 40026501, 93395169, 120079503, 280185507, 840556521]

約数ペア:

[(1, 840556521), (3, 280185507), (7, 120079503), (9, 93395169), (21, 40026501), (27, 31131723), (53, 15859557), (63, 13342167), (81, 10377241), (83, 10127187), (159, 5286519), (189, 4447389), (249, 3375729), (337, 2494233), (371, 2265651), (477, 1762173), (567, 1482463), (581, 1446741), (747, 1125243), (1011, 831411), (1113, 755217), (1431, 587391), (1743, 482247), (2241, 375081), (2359, 356319), (3033, 277137), (3339, 251739), (4293, 195797), (4399, 191079), (5229, 160749), (6723, 125027), (7077, 118773), (9099, 92379), (10017, 83913), (13197, 63693), (15687, 53583), (17861, 47061), (21231, 39591), (27297, 30793), (27971, 30051)]