20952136

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{449}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 41580000

約数和(自身を除く): 20627864

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 307, 449, 614, 898, 1228, 1796, 2456, 3592, 5833, 8531, 11666, 17062, 23332, 34124, 46664, 68248, 137843, 275686, 551372, 1102744, 2619017, 5238034, 10476068, 20952136]

約数ペア:

[(1, 20952136), (2, 10476068), (4, 5238034), (8, 2619017), (19, 1102744), (38, 551372), (76, 275686), (152, 137843), (307, 68248), (449, 46664), (614, 34124), (898, 23332), (1228, 17062), (1796, 11666), (2456, 8531), (3592, 5833)]