21580902

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2903}}^1$

素因数の和:2977

約数の個数: 48

約数和(自身を含む): 54362880

約数和(自身を除く): 32781978

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 59, 63, 118, 126, 177, 354, 413, 531, 826, 1062, 1239, 2478, 2903, 3717, 5806, 7434, 8709, 17418, 20321, 26127, 40642, 52254, 60963, 121926, 171277, 182889, 342554, 365778, 513831, 1027662, 1198939, 1541493, 2397878, 3082986, 3596817, 7193634, 10790451, 21580902]

約数ペア:

[(1, 21580902), (2, 10790451), (3, 7193634), (6, 3596817), (7, 3082986), (9, 2397878), (14, 1541493), (18, 1198939), (21, 1027662), (42, 513831), (59, 365778), (63, 342554), (118, 182889), (126, 171277), (177, 121926), (354, 60963), (413, 52254), (531, 40642), (826, 26127), (1062, 20321), (1239, 17418), (2478, 8709), (2903, 7434), (3717, 5806)]