21121996

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39703}}^1$

素因数の和:39733

約数の個数: 24

約数和(自身を含む): 44468480

約数和(自身を除く): 23346484

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39703, 79406, 158812, 277921, 555842, 754357, 1111684, 1508714, 3017428, 5280499, 10560998, 21121996]

約数ペア:

[(1, 21121996), (2, 10560998), (4, 5280499), (7, 3017428), (14, 1508714), (19, 1111684), (28, 754357), (38, 555842), (76, 277921), (133, 158812), (266, 79406), (532, 39703)]