21268904

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8231}}^1$

素因数の和:8273

約数の個数: 32

約数和(自身を含む): 44452800

約数和(自身を除く): 23183896

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 8231, 16462, 32924, 65848, 139927, 156389, 279854, 312778, 559708, 625556, 1119416, 1251112, 2658613, 5317226, 10634452, 21268904]

約数ペア:

[(1, 21268904), (2, 10634452), (4, 5317226), (8, 2658613), (17, 1251112), (19, 1119416), (34, 625556), (38, 559708), (68, 312778), (76, 279854), (136, 156389), (152, 139927), (323, 65848), (646, 32924), (1292, 16462), (2584, 8231)]