20894384

素因数分解:

$2^4\times 7^2\times {\mathrm{29}}^1\times {\mathrm{919}}^1$

素因数の和:970

約数の個数: 60

約数和(自身を含む): 48769200

約数和(自身を除く): 27874816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 49, 56, 58, 98, 112, 116, 196, 203, 232, 392, 406, 464, 784, 812, 919, 1421, 1624, 1838, 2842, 3248, 3676, 5684, 6433, 7352, 11368, 12866, 14704, 22736, 25732, 26651, 45031, 51464, 53302, 90062, 102928, 106604, 180124, 186557, 213208, 360248, 373114, 426416, 720496, 746228, 1305899, 1492456, 2611798, 2984912, 5223596, 10447192, 20894384]

約数ペア:

[(1, 20894384), (2, 10447192), (4, 5223596), (7, 2984912), (8, 2611798), (14, 1492456), (16, 1305899), (28, 746228), (29, 720496), (49, 426416), (56, 373114), (58, 360248), (98, 213208), (112, 186557), (116, 180124), (196, 106604), (203, 102928), (232, 90062), (392, 53302), (406, 51464), (464, 45031), (784, 26651), (812, 25732), (919, 22736), (1421, 14704), (1624, 12866), (1838, 11368), (2842, 7352), (3248, 6433), (3676, 5684)]