221656113

素因数分解:

$3^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{9967}}^1$

素因数の和:10333

約数の個数: 24

約数和(自身を含む): 366981888

約数和(自身を除く): 145325775

約数列:

[1, 3, 7, 9, 21, 63, 353, 1059, 2471, 3177, 7413, 9967, 22239, 29901, 69769, 89703, 209307, 627921, 3518351, 10555053, 24628457, 31665159, 73885371, 221656113]

約数ペア:

[(1, 221656113), (3, 73885371), (7, 31665159), (9, 24628457), (21, 10555053), (63, 3518351), (353, 627921), (1059, 209307), (2471, 89703), (3177, 69769), (7413, 29901), (9967, 22239)]