9911890

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16249}}^1$

素因数の和:16317

約数の個数: 16

約数和(自身を含む): 18135000

約数和(自身を除く): 8223110

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 16249, 32498, 81245, 162490, 991189, 1982378, 4955945, 9911890]

約数ペア:

[(1, 9911890), (2, 4955945), (5, 1982378), (10, 991189), (61, 162490), (122, 81245), (305, 32498), (610, 16249)]