21374872

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1091}}^1$

素因数の和:1207

約数の個数: 32

約数和(自身を含む): 41932800

約数和(自身を除く): 20557928

約数列:

[1, 2, 4, 8, 31, 62, 79, 124, 158, 248, 316, 632, 1091, 2182, 2449, 4364, 4898, 8728, 9796, 19592, 33821, 67642, 86189, 135284, 172378, 270568, 344756, 689512, 2671859, 5343718, 10687436, 21374872]

約数ペア:

[(1, 21374872), (2, 10687436), (4, 5343718), (8, 2671859), (31, 689512), (62, 344756), (79, 270568), (124, 172378), (158, 135284), (248, 86189), (316, 67642), (632, 33821), (1091, 19592), (2182, 9796), (2449, 8728), (4364, 4898)]