21685380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4951}}^1$

素因数の和:5036

約数の個数: 48

約数和(自身を含む): 61563264

約数和(自身を除く): 39877884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 4951, 9902, 14853, 19804, 24755, 29706, 49510, 59412, 74265, 99020, 148530, 297060, 361423, 722846, 1084269, 1445692, 1807115, 2168538, 3614230, 4337076, 5421345, 7228460, 10842690, 21685380]

約数ペア:

[(1, 21685380), (2, 10842690), (3, 7228460), (4, 5421345), (5, 4337076), (6, 3614230), (10, 2168538), (12, 1807115), (15, 1445692), (20, 1084269), (30, 722846), (60, 361423), (73, 297060), (146, 148530), (219, 99020), (292, 74265), (365, 59412), (438, 49510), (730, 29706), (876, 24755), (1095, 19804), (1460, 14853), (2190, 9902), (4380, 4951)]