21972676

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 22056764

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 89, 124, 178, 181, 341, 356, 362, 682, 724, 979, 1364, 1958, 1991, 2759, 3916, 3982, 5518, 5611, 7964, 11036, 11222, 16109, 22444, 30349, 32218, 60698, 61721, 64436, 121396, 123442, 177199, 246884, 354398, 499379, 708796, 998758, 1997516, 5493169, 10986338, 21972676]

約数ペア:

[(1, 21972676), (2, 10986338), (4, 5493169), (11, 1997516), (22, 998758), (31, 708796), (44, 499379), (62, 354398), (89, 246884), (124, 177199), (178, 123442), (181, 121396), (341, 64436), (356, 61721), (362, 60698), (682, 32218), (724, 30349), (979, 22444), (1364, 16109), (1958, 11222), (1991, 11036), (2759, 7964), (3916, 5611), (3982, 5518)]