21125356

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{44381}}^1$

素因数の和:44409

約数の個数: 24

約数和(自身を含む): 44737056

約数和(自身を除く): 23611700

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 44381, 88762, 177524, 310667, 621334, 754477, 1242668, 1508954, 3017908, 5281339, 10562678, 21125356]

約数ペア:

[(1, 21125356), (2, 10562678), (4, 5281339), (7, 3017908), (14, 1508954), (17, 1242668), (28, 754477), (34, 621334), (68, 310667), (119, 177524), (238, 88762), (476, 44381)]