21130116904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{587}}^1\times {\mathrm{18217}}^1$

素因数の和:18842

約数の個数: 64

約数和(自身を含む): 44991172800

約数和(自身を除く): 23861055896

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 587, 988, 1174, 1976, 2348, 4696, 7631, 11153, 15262, 18217, 22306, 30524, 36434, 44612, 61048, 72868, 89224, 144989, 145736, 236821, 289978, 346123, 473642, 579956, 692246, 947284, 1159912, 1384492, 1894568, 2768984, 4499599, 8999198, 10693379, 17998396, 21386758, 35996792, 42773516, 85547032, 139013927, 203174201, 278027854, 406348402, 556055708, 812696804, 1112111416, 1625393608, 2641264613, 5282529226, 10565058452, 21130116904]

約数ペア:

[(1, 21130116904), (2, 10565058452), (4, 5282529226), (8, 2641264613), (13, 1625393608), (19, 1112111416), (26, 812696804), (38, 556055708), (52, 406348402), (76, 278027854), (104, 203174201), (152, 139013927), (247, 85547032), (494, 42773516), (587, 35996792), (988, 21386758), (1174, 17998396), (1976, 10693379), (2348, 8999198), (4696, 4499599), (7631, 2768984), (11153, 1894568), (15262, 1384492), (18217, 1159912), (22306, 947284), (30524, 692246), (36434, 579956), (44612, 473642), (61048, 346123), (72868, 289978), (89224, 236821), (144989, 145736)]