20870164

素因数分解:

$2^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{5869}}^1$

素因数の和:6007

約数の個数: 24

約数和(自身を含む): 42076160

約数和(自身を除く): 21205996

約数列:

[1, 2, 4, 7, 14, 28, 127, 254, 508, 889, 1778, 3556, 5869, 11738, 23476, 41083, 82166, 164332, 745363, 1490726, 2981452, 5217541, 10435082, 20870164]

約数ペア:

[(1, 20870164), (2, 10435082), (4, 5217541), (7, 2981452), (14, 1490726), (28, 745363), (127, 164332), (254, 82166), (508, 41083), (889, 23476), (1778, 11738), (3556, 5869)]