21948275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1201}}^1$

素因数の和:1271

約数の個数: 24

約数和(自身を含む): 29511504

約数和(自身を除く): 7563229

約数列:

[1, 5, 17, 25, 43, 85, 215, 425, 731, 1075, 1201, 3655, 6005, 18275, 20417, 30025, 51643, 102085, 258215, 510425, 877931, 1291075, 4389655, 21948275]

約数ペア:

[(1, 21948275), (5, 4389655), (17, 1291075), (25, 877931), (43, 510425), (85, 258215), (215, 102085), (425, 51643), (731, 30025), (1075, 20417), (1201, 18275), (3655, 6005)]