19894641

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{811}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 31102848

約数和(自身を除く): 11208207

約数列:

[1, 3, 13, 17, 37, 39, 51, 111, 221, 481, 629, 663, 811, 1443, 1887, 2433, 8177, 10543, 13787, 24531, 30007, 31629, 41361, 90021, 179231, 390091, 510119, 537693, 1170273, 1530357, 6631547, 19894641]

約数ペア:

[(1, 19894641), (3, 6631547), (13, 1530357), (17, 1170273), (37, 537693), (39, 510119), (51, 390091), (111, 179231), (221, 90021), (481, 41361), (629, 31629), (663, 30007), (811, 24531), (1443, 13787), (1887, 10543), (2433, 8177)]