21617402

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1\times {\mathrm{379}}^1$

素因数の和:498

約数の個数: 24

約数和(自身を含む): 34747200

約数和(自身を除く): 13129798

約数列:

[1, 2, 19, 38, 79, 158, 361, 379, 722, 758, 1501, 3002, 7201, 14402, 28519, 29941, 57038, 59882, 136819, 273638, 568879, 1137758, 10808701, 21617402]

約数ペア:

[(1, 21617402), (2, 10808701), (19, 1137758), (38, 568879), (79, 273638), (158, 136819), (361, 59882), (379, 57038), (722, 29941), (758, 28519), (1501, 14402), (3002, 7201)]