21918975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{22481}}^1$

素因数の和:22507

約数の個数: 24

約数和(自身を含む): 39028752

約数和(自身を除く): 17109777

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 22481, 67443, 112405, 292253, 337215, 562025, 876759, 1461265, 1686075, 4383795, 7306325, 21918975]

約数ペア:

[(1, 21918975), (3, 7306325), (5, 4383795), (13, 1686075), (15, 1461265), (25, 876759), (39, 562025), (65, 337215), (75, 292253), (195, 112405), (325, 67443), (975, 22481)]