20951216

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9157}}^1$

素因数の和:9189

約数の個数: 40

約数和(自身を含む): 47694864

約数和(自身を除く): 26743648

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 9157, 18314, 36628, 73256, 100727, 119041, 146512, 201454, 238082, 402908, 476164, 805816, 952328, 1309451, 1611632, 1904656, 2618902, 5237804, 10475608, 20951216]

約数ペア:

[(1, 20951216), (2, 10475608), (4, 5237804), (8, 2618902), (11, 1904656), (13, 1611632), (16, 1309451), (22, 952328), (26, 805816), (44, 476164), (52, 402908), (88, 238082), (104, 201454), (143, 146512), (176, 119041), (208, 100727), (286, 73256), (572, 36628), (1144, 18314), (2288, 9157)]