21190204

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 43868160

約数和(自身を除く): 22677956

約数列:

[1, 2, 4, 7, 14, 28, 59, 101, 118, 127, 202, 236, 254, 404, 413, 508, 707, 826, 889, 1414, 1652, 1778, 2828, 3556, 5959, 7493, 11918, 12827, 14986, 23836, 25654, 29972, 41713, 51308, 52451, 83426, 89789, 104902, 166852, 179578, 209804, 359156, 756793, 1513586, 3027172, 5297551, 10595102, 21190204]

約数ペア:

[(1, 21190204), (2, 10595102), (4, 5297551), (7, 3027172), (14, 1513586), (28, 756793), (59, 359156), (101, 209804), (118, 179578), (127, 166852), (202, 104902), (236, 89789), (254, 83426), (404, 52451), (413, 51308), (508, 41713), (707, 29972), (826, 25654), (889, 23836), (1414, 14986), (1652, 12827), (1778, 11918), (2828, 7493), (3556, 5959)]