21000296968

素因数分解:

$2^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{3318631}}^1$

素因数の和:3318757

約数の個数: 32

約数和(自身を含む): 45398885760

約数和(自身を除く): 24398588792

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 113, 226, 452, 791, 904, 1582, 3164, 6328, 3318631, 6637262, 13274524, 23230417, 26549048, 46460834, 92921668, 185843336, 375005303, 750010606, 1500021212, 2625037121, 3000042424, 5250074242, 10500148484, 21000296968]

約数ペア:

[(1, 21000296968), (2, 10500148484), (4, 5250074242), (7, 3000042424), (8, 2625037121), (14, 1500021212), (28, 750010606), (56, 375005303), (113, 185843336), (226, 92921668), (452, 46460834), (791, 26549048), (904, 23230417), (1582, 13274524), (3164, 6637262), (6328, 3318631)]