21438088

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3217}}^1$

素因数の和:3254

約数の個数: 48

約数和(自身を含む): 49525020

約数和(自身を除く): 28086932

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 392, 476, 833, 952, 1666, 3217, 3332, 6434, 6664, 12868, 22519, 25736, 45038, 54689, 90076, 109378, 157633, 180152, 218756, 315266, 382823, 437512, 630532, 765646, 1261064, 1531292, 2679761, 3062584, 5359522, 10719044, 21438088]

約数ペア:

[(1, 21438088), (2, 10719044), (4, 5359522), (7, 3062584), (8, 2679761), (14, 1531292), (17, 1261064), (28, 765646), (34, 630532), (49, 437512), (56, 382823), (68, 315266), (98, 218756), (119, 180152), (136, 157633), (196, 109378), (238, 90076), (392, 54689), (476, 45038), (833, 25736), (952, 22519), (1666, 12868), (3217, 6664), (3332, 6434)]