21487890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{4289}}^1$

素因数の和:4466

約数の個数: 32

約数和(自身を含む): 51891840

約数和(自身を除く): 30403950

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 167, 334, 501, 835, 1002, 1670, 2505, 4289, 5010, 8578, 12867, 21445, 25734, 42890, 64335, 128670, 716263, 1432526, 2148789, 3581315, 4297578, 7162630, 10743945, 21487890]

約数ペア:

[(1, 21487890), (2, 10743945), (3, 7162630), (5, 4297578), (6, 3581315), (10, 2148789), (15, 1432526), (30, 716263), (167, 128670), (334, 64335), (501, 42890), (835, 25734), (1002, 21445), (1670, 12867), (2505, 8578), (4289, 5010)]