21023918

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{787}}^1$

素因数の和:864

約数の個数: 24

約数和(自身を含む): 34225992

約数和(自身を除く): 13202074

約数列:

[1, 2, 19, 37, 38, 74, 361, 703, 722, 787, 1406, 1574, 13357, 14953, 26714, 29119, 29906, 58238, 284107, 553261, 568214, 1106522, 10511959, 21023918]

約数ペア:

[(1, 21023918), (2, 10511959), (19, 1106522), (37, 568214), (38, 553261), (74, 284107), (361, 58238), (703, 29906), (722, 29119), (787, 26714), (1406, 14953), (1574, 13357)]