21295995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1597}}^1$

素因数の和:1739

約数の個数: 32

約数和(自身を含む): 39272448

約数和(自身を除く): 17976453

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 127, 381, 635, 889, 1597, 1905, 2667, 4445, 4791, 7985, 11179, 13335, 23955, 33537, 55895, 167685, 202819, 608457, 1014095, 1419733, 3042285, 4259199, 7098665, 21295995]

約数ペア:

[(1, 21295995), (3, 7098665), (5, 4259199), (7, 3042285), (15, 1419733), (21, 1014095), (35, 608457), (105, 202819), (127, 167685), (381, 55895), (635, 33537), (889, 23955), (1597, 13335), (1905, 11179), (2667, 7985), (4445, 4791)]