21501240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{233}}^1\times {\mathrm{769}}^1$

素因数の和:1016

約数の個数: 64

約数和(自身を含む): 64864800

約数和(自身を除く): 43363560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 233, 466, 699, 769, 932, 1165, 1398, 1538, 1864, 2307, 2330, 2796, 3076, 3495, 3845, 4614, 4660, 5592, 6152, 6990, 7690, 9228, 9320, 11535, 13980, 15380, 18456, 23070, 27960, 30760, 46140, 92280, 179177, 358354, 537531, 716708, 895885, 1075062, 1433416, 1791770, 2150124, 2687655, 3583540, 4300248, 5375310, 7167080, 10750620, 21501240]

約数ペア:

[(1, 21501240), (2, 10750620), (3, 7167080), (4, 5375310), (5, 4300248), (6, 3583540), (8, 2687655), (10, 2150124), (12, 1791770), (15, 1433416), (20, 1075062), (24, 895885), (30, 716708), (40, 537531), (60, 358354), (120, 179177), (233, 92280), (466, 46140), (699, 30760), (769, 27960), (932, 23070), (1165, 18456), (1398, 15380), (1538, 13980), (1864, 11535), (2307, 9320), (2330, 9228), (2796, 7690), (3076, 6990), (3495, 6152), (3845, 5592), (4614, 4660)]