21741240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1759}}^1$

素因数の和:1876

約数の個数: 64

約数和(自身を含む): 65894400

約数和(自身を除く): 44153160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 103, 120, 206, 309, 412, 515, 618, 824, 1030, 1236, 1545, 1759, 2060, 2472, 3090, 3518, 4120, 5277, 6180, 7036, 8795, 10554, 12360, 14072, 17590, 21108, 26385, 35180, 42216, 52770, 70360, 105540, 181177, 211080, 362354, 543531, 724708, 905885, 1087062, 1449416, 1811770, 2174124, 2717655, 3623540, 4348248, 5435310, 7247080, 10870620, 21741240]

約数ペア:

[(1, 21741240), (2, 10870620), (3, 7247080), (4, 5435310), (5, 4348248), (6, 3623540), (8, 2717655), (10, 2174124), (12, 1811770), (15, 1449416), (20, 1087062), (24, 905885), (30, 724708), (40, 543531), (60, 362354), (103, 211080), (120, 181177), (206, 105540), (309, 70360), (412, 52770), (515, 42216), (618, 35180), (824, 26385), (1030, 21108), (1236, 17590), (1545, 14072), (1759, 12360), (2060, 10554), (2472, 8795), (3090, 7036), (3518, 6180), (4120, 5277)]