20987112

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{51439}}^1$

素因数の和:51465

約数の個数: 32

約数和(自身を含む): 55555200

約数和(自身を除く): 34568088

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408, 51439, 102878, 154317, 205756, 308634, 411512, 617268, 874463, 1234536, 1748926, 2623389, 3497852, 5246778, 6995704, 10493556, 20987112]

約数ペア:

[(1, 20987112), (2, 10493556), (3, 6995704), (4, 5246778), (6, 3497852), (8, 2623389), (12, 1748926), (17, 1234536), (24, 874463), (34, 617268), (51, 411512), (68, 308634), (102, 205756), (136, 154317), (204, 102878), (408, 51439)]