19666339

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 25712640

約数和(自身を除く): 6046301

約数列:

[1, 7, 11, 53, 61, 77, 79, 371, 427, 553, 583, 671, 869, 3233, 4081, 4187, 4697, 4819, 6083, 22631, 29309, 33733, 35563, 46057, 53009, 248941, 255407, 322399, 371063, 1787849, 2809477, 19666339]

約数ペア:

[(1, 19666339), (7, 2809477), (11, 1787849), (53, 371063), (61, 322399), (77, 255407), (79, 248941), (371, 53009), (427, 46057), (553, 35563), (583, 33733), (671, 29309), (869, 22631), (3233, 6083), (4081, 4819), (4187, 4697)]