19975574

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{379}}^1$

素因数の和:492

約数の個数: 24

約数和(自身を含む): 32141160

約数和(自身を除く): 12165586

約数列:

[1, 2, 19, 38, 73, 146, 361, 379, 722, 758, 1387, 2774, 7201, 14402, 26353, 27667, 52706, 55334, 136819, 273638, 525673, 1051346, 9987787, 19975574]

約数ペア:

[(1, 19975574), (2, 9987787), (19, 1051346), (38, 525673), (73, 273638), (146, 136819), (361, 55334), (379, 52706), (722, 27667), (758, 26353), (1387, 14402), (2774, 7201)]