21791144

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{983}}^1$

素因数の和:1169

約数の個数: 32

約数和(自身を含む): 43571520

約数和(自身を除く): 21780376

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 163, 326, 652, 983, 1304, 1966, 2771, 3932, 5542, 7864, 11084, 16711, 22168, 33422, 66844, 133688, 160229, 320458, 640916, 1281832, 2723893, 5447786, 10895572, 21791144]

約数ペア:

[(1, 21791144), (2, 10895572), (4, 5447786), (8, 2723893), (17, 1281832), (34, 640916), (68, 320458), (136, 160229), (163, 133688), (326, 66844), (652, 33422), (983, 22168), (1304, 16711), (1966, 11084), (2771, 7864), (3932, 5542)]