17680988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4789}}^1$

素因数の和:4877

約数の個数: 24

約数和(自身を含む): 33798240

約数和(自身を除く): 16117252

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 4789, 9578, 19156, 62257, 124514, 249028, 340019, 680038, 1360076, 4420247, 8840494, 17680988]

約数ペア:

[(1, 17680988), (2, 8840494), (4, 4420247), (13, 1360076), (26, 680038), (52, 340019), (71, 249028), (142, 124514), (284, 62257), (923, 19156), (1846, 9578), (3692, 4789)]