21242790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2713}}^1$

素因数の和:2758

約数の個数: 64

約数和(自身を含む): 58622400

約数和(自身を除く): 37379610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 87, 90, 135, 145, 174, 261, 270, 290, 435, 522, 783, 870, 1305, 1566, 2610, 2713, 3915, 5426, 7830, 8139, 13565, 16278, 24417, 27130, 40695, 48834, 73251, 78677, 81390, 122085, 146502, 157354, 236031, 244170, 366255, 393385, 472062, 708093, 732510, 786770, 1180155, 1416186, 2124279, 2360310, 3540465, 4248558, 7080930, 10621395, 21242790]

約数ペア:

[(1, 21242790), (2, 10621395), (3, 7080930), (5, 4248558), (6, 3540465), (9, 2360310), (10, 2124279), (15, 1416186), (18, 1180155), (27, 786770), (29, 732510), (30, 708093), (45, 472062), (54, 393385), (58, 366255), (87, 244170), (90, 236031), (135, 157354), (145, 146502), (174, 122085), (261, 81390), (270, 78677), (290, 73251), (435, 48834), (522, 40695), (783, 27130), (870, 24417), (1305, 16278), (1566, 13565), (2610, 8139), (2713, 7830), (3915, 5426)]