21989132

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{7459}}^1$

素因数の和:7541

約数の個数: 24

約数和(自身を含む): 42611520

約数和(自身を除く): 20622388

約数列:

[1, 2, 4, 11, 22, 44, 67, 134, 268, 737, 1474, 2948, 7459, 14918, 29836, 82049, 164098, 328196, 499753, 999506, 1999012, 5497283, 10994566, 21989132]

約数ペア:

[(1, 21989132), (2, 10994566), (4, 5497283), (11, 1999012), (22, 999506), (44, 499753), (67, 328196), (134, 164098), (268, 82049), (737, 29836), (1474, 14918), (2948, 7459)]