21214893

素因数分解:

$3^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:466

約数の個数: 32

約数和(自身を含む): 33696000

約数和(自身を除く): 12481107

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 343, 371, 389, 1029, 1113, 1167, 2597, 2723, 7791, 8169, 18179, 19061, 20617, 54537, 57183, 61851, 133427, 144319, 400281, 432957, 1010233, 3030699, 7071631, 21214893]

約数ペア:

[(1, 21214893), (3, 7071631), (7, 3030699), (21, 1010233), (49, 432957), (53, 400281), (147, 144319), (159, 133427), (343, 61851), (371, 57183), (389, 54537), (1029, 20617), (1113, 19061), (1167, 18179), (2597, 8169), (2723, 7791)]