21645448

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{379}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 45486000

約数和(自身を除く): 23840552

約数列:

[1, 2, 4, 8, 11, 22, 44, 59, 88, 118, 121, 236, 242, 379, 472, 484, 649, 758, 968, 1298, 1516, 2596, 3032, 4169, 5192, 7139, 8338, 14278, 16676, 22361, 28556, 33352, 44722, 45859, 57112, 89444, 91718, 178888, 183436, 245971, 366872, 491942, 983884, 1967768, 2705681, 5411362, 10822724, 21645448]

約数ペア:

[(1, 21645448), (2, 10822724), (4, 5411362), (8, 2705681), (11, 1967768), (22, 983884), (44, 491942), (59, 366872), (88, 245971), (118, 183436), (121, 178888), (236, 91718), (242, 89444), (379, 57112), (472, 45859), (484, 44722), (649, 33352), (758, 28556), (968, 22361), (1298, 16676), (1516, 14278), (2596, 8338), (3032, 7139), (4169, 5192)]