21031903875

素因数分解:

$3^1\times 5^3\times {\mathrm{53}}^1\times {\mathrm{229}}^1\times {\mathrm{4621}}^1$

素因数の和:4921

約数の個数: 64

約数和(自身を含む): 35820869760

約数和(自身を除く): 14788965885

約数列:

[1, 3, 5, 15, 25, 53, 75, 125, 159, 229, 265, 375, 687, 795, 1145, 1325, 3435, 3975, 4621, 5725, 6625, 12137, 13863, 17175, 19875, 23105, 28625, 36411, 60685, 69315, 85875, 115525, 182055, 244913, 303425, 346575, 577625, 734739, 910275, 1058209, 1224565, 1517125, 1732875, 3174627, 3673695, 4551375, 5291045, 6122825, 15873135, 18368475, 26455225, 30614125, 56085077, 79365675, 91842375, 132276125, 168255231, 280425385, 396828375, 841276155, 1402126925, 4206380775, 7010634625, 21031903875]

約数ペア:

[(1, 21031903875), (3, 7010634625), (5, 4206380775), (15, 1402126925), (25, 841276155), (53, 396828375), (75, 280425385), (125, 168255231), (159, 132276125), (229, 91842375), (265, 79365675), (375, 56085077), (687, 30614125), (795, 26455225), (1145, 18368475), (1325, 15873135), (3435, 6122825), (3975, 5291045), (4621, 4551375), (5725, 3673695), (6625, 3174627), (12137, 1732875), (13863, 1517125), (17175, 1224565), (19875, 1058209), (23105, 910275), (28625, 734739), (36411, 577625), (60685, 346575), (69315, 303425), (85875, 244913), (115525, 182055)]