21903670527

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1\times {\mathrm{13003}}^1$

素因数の和:13403

約数の個数: 32

約数和(自身を含む): 30760181760

約数和(自身を除く): 8856511233

約数列:

[1, 3, 31, 59, 93, 177, 307, 921, 1829, 5487, 9517, 13003, 18113, 28551, 39009, 54339, 403093, 561503, 767177, 1209279, 1684509, 2301531, 3991921, 11975763, 23782487, 71347461, 123749551, 235523339, 371248653, 706570017, 7301223509, 21903670527]

約数ペア:

[(1, 21903670527), (3, 7301223509), (31, 706570017), (59, 371248653), (93, 235523339), (177, 123749551), (307, 71347461), (921, 23782487), (1829, 11975763), (5487, 3991921), (9517, 2301531), (13003, 1684509), (18113, 1209279), (28551, 767177), (39009, 561503), (54339, 403093)]