21728550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{8521}}^1$

素因数の和:8553

約数の個数: 48

約数和(自身を含む): 57063312

約数和(自身を除く): 35334762

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 34, 50, 51, 75, 85, 102, 150, 170, 255, 425, 510, 850, 1275, 2550, 8521, 17042, 25563, 42605, 51126, 85210, 127815, 144857, 213025, 255630, 289714, 426050, 434571, 639075, 724285, 869142, 1278150, 1448570, 2172855, 3621425, 4345710, 7242850, 10864275, 21728550]

約数ペア:

[(1, 21728550), (2, 10864275), (3, 7242850), (5, 4345710), (6, 3621425), (10, 2172855), (15, 1448570), (17, 1278150), (25, 869142), (30, 724285), (34, 639075), (50, 434571), (51, 426050), (75, 289714), (85, 255630), (102, 213025), (150, 144857), (170, 127815), (255, 85210), (425, 51126), (510, 42605), (850, 25563), (1275, 17042), (2550, 8521)]