19815628

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^2\times {\mathrm{421}}^1$

素因数の和:514

約数の個数: 36

約数和(自身を含む): 40717936

約数和(自身を除く): 20902308

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 421, 574, 842, 1148, 1681, 1684, 2947, 3362, 5894, 6724, 11767, 11788, 17261, 23534, 34522, 47068, 69044, 120827, 241654, 483308, 707701, 1415402, 2830804, 4953907, 9907814, 19815628]

約数ペア:

[(1, 19815628), (2, 9907814), (4, 4953907), (7, 2830804), (14, 1415402), (28, 707701), (41, 483308), (82, 241654), (164, 120827), (287, 69044), (421, 47068), (574, 34522), (842, 23534), (1148, 17261), (1681, 11788), (1684, 11767), (2947, 6724), (3362, 5894)]