18716915

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 8861965

約数列:

[1, 5, 7, 17, 35, 83, 85, 119, 379, 415, 581, 595, 1411, 1895, 2653, 2905, 6443, 7055, 9877, 13265, 31457, 32215, 45101, 49385, 157285, 220199, 225505, 534769, 1100995, 2673845, 3743383, 18716915]

約数ペア:

[(1, 18716915), (5, 3743383), (7, 2673845), (17, 1100995), (35, 534769), (83, 225505), (85, 220199), (119, 157285), (379, 49385), (415, 45101), (581, 32215), (595, 31457), (1411, 13265), (1895, 9877), (2653, 7055), (2905, 6443)]