216955425

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{67273}}^1$

素因数の和:67329

約数の個数: 24

約数和(自身を含む): 367046944

約数和(自身を除く): 150091519

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 67273, 201819, 336365, 1009095, 1681825, 2892739, 5045475, 8678217, 14463695, 43391085, 72318475, 216955425]

約数ペア:

[(1, 216955425), (3, 72318475), (5, 43391085), (15, 14463695), (25, 8678217), (43, 5045475), (75, 2892739), (129, 1681825), (215, 1009095), (645, 336365), (1075, 201819), (3225, 67273)]