21820084

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1031}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 46118016

約数和(自身を除く): 24297932

約数列:

[1, 2, 4, 11, 13, 22, 26, 37, 44, 52, 74, 143, 148, 286, 407, 481, 572, 814, 962, 1031, 1628, 1924, 2062, 4124, 5291, 10582, 11341, 13403, 21164, 22682, 26806, 38147, 45364, 53612, 76294, 147433, 152588, 294866, 419617, 495911, 589732, 839234, 991822, 1678468, 1983644, 5455021, 10910042, 21820084]

約数ペア:

[(1, 21820084), (2, 10910042), (4, 5455021), (11, 1983644), (13, 1678468), (22, 991822), (26, 839234), (37, 589732), (44, 495911), (52, 419617), (74, 294866), (143, 152588), (148, 147433), (286, 76294), (407, 53612), (481, 45364), (572, 38147), (814, 26806), (962, 22682), (1031, 21164), (1628, 13403), (1924, 11341), (2062, 10582), (4124, 5291)]