21626635

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 28873152

約数和(自身を除く): 7246517

約数列:

[1, 5, 17, 43, 61, 85, 97, 215, 305, 485, 731, 1037, 1649, 2623, 3655, 4171, 5185, 5917, 8245, 13115, 20855, 29585, 44591, 70907, 100589, 222955, 254431, 354535, 502945, 1272155, 4325327, 21626635]

約数ペア:

[(1, 21626635), (5, 4325327), (17, 1272155), (43, 502945), (61, 354535), (85, 254431), (97, 222955), (215, 100589), (305, 70907), (485, 44591), (731, 29585), (1037, 20855), (1649, 13115), (2623, 8245), (3655, 5917), (4171, 5185)]