21755850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{3373}}^1$

素因数の和:3431

約数の個数: 48

約数和(自身を含む): 55225632

約数和(自身を除く): 33469782

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 43, 50, 75, 86, 129, 150, 215, 258, 430, 645, 1075, 1290, 2150, 3225, 3373, 6450, 6746, 10119, 16865, 20238, 33730, 50595, 84325, 101190, 145039, 168650, 252975, 290078, 435117, 505950, 725195, 870234, 1450390, 2175585, 3625975, 4351170, 7251950, 10877925, 21755850]

約数ペア:

[(1, 21755850), (2, 10877925), (3, 7251950), (5, 4351170), (6, 3625975), (10, 2175585), (15, 1450390), (25, 870234), (30, 725195), (43, 505950), (50, 435117), (75, 290078), (86, 252975), (129, 168650), (150, 145039), (215, 101190), (258, 84325), (430, 50595), (645, 33730), (1075, 20238), (1290, 16865), (2150, 10119), (3225, 6746), (3373, 6450)]