21301522020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{839}}^1\times {\mathrm{47017}}^1$

素因数の和:47874

約数の個数: 96

約数和(自身を含む): 66351801600

約数和(自身を除く): 45050279580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 839, 1678, 2517, 3356, 4195, 5034, 7551, 8390, 10068, 12585, 15102, 16780, 22653, 25170, 30204, 37755, 45306, 47017, 50340, 75510, 90612, 94034, 113265, 141051, 151020, 188068, 226530, 235085, 282102, 423153, 453060, 470170, 564204, 705255, 846306, 940340, 1269459, 1410510, 1692612, 2115765, 2538918, 2821020, 4231530, 5077836, 6347295, 8463060, 12694590, 25389180, 39447263, 78894526, 118341789, 157789052, 197236315, 236683578, 355025367, 394472630, 473367156, 591708945, 710050734, 788945260, 1065076101, 1183417890, 1420101468, 1775126835, 2130152202, 2366835780, 3550253670, 4260304404, 5325380505, 7100507340, 10650761010, 21301522020]

約数ペア:

[(1, 21301522020), (2, 10650761010), (3, 7100507340), (4, 5325380505), (5, 4260304404), (6, 3550253670), (9, 2366835780), (10, 2130152202), (12, 1775126835), (15, 1420101468), (18, 1183417890), (20, 1065076101), (27, 788945260), (30, 710050734), (36, 591708945), (45, 473367156), (54, 394472630), (60, 355025367), (90, 236683578), (108, 197236315), (135, 157789052), (180, 118341789), (270, 78894526), (540, 39447263), (839, 25389180), (1678, 12694590), (2517, 8463060), (3356, 6347295), (4195, 5077836), (5034, 4231530), (7551, 2821020), (8390, 2538918), (10068, 2115765), (12585, 1692612), (15102, 1410510), (16780, 1269459), (22653, 940340), (25170, 846306), (30204, 705255), (37755, 564204), (45306, 470170), (47017, 453060), (50340, 423153), (75510, 282102), (90612, 235085), (94034, 226530), (113265, 188068), (141051, 151020)]