21217592

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{953}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 45677520

約数和(自身を除く): 24459928

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 88, 92, 121, 184, 242, 253, 484, 506, 953, 968, 1012, 1906, 2024, 2783, 3812, 5566, 7624, 10483, 11132, 20966, 21919, 22264, 41932, 43838, 83864, 87676, 115313, 175352, 230626, 241109, 461252, 482218, 922504, 964436, 1928872, 2652199, 5304398, 10608796, 21217592]

約数ペア:

[(1, 21217592), (2, 10608796), (4, 5304398), (8, 2652199), (11, 1928872), (22, 964436), (23, 922504), (44, 482218), (46, 461252), (88, 241109), (92, 230626), (121, 175352), (184, 115313), (242, 87676), (253, 83864), (484, 43838), (506, 41932), (953, 22264), (968, 21919), (1012, 20966), (1906, 11132), (2024, 10483), (2783, 7624), (3812, 5566)]