21088410

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{733}}^1$

素因数の和:887

約数の個数: 64

約数和(自身を含む): 58344192

約数和(自身を除く): 37255782

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 137, 210, 274, 411, 685, 733, 822, 959, 1370, 1466, 1918, 2055, 2199, 2877, 3665, 4110, 4398, 4795, 5131, 5754, 7330, 9590, 10262, 10995, 14385, 15393, 21990, 25655, 28770, 30786, 51310, 76965, 100421, 153930, 200842, 301263, 502105, 602526, 702947, 1004210, 1405894, 1506315, 2108841, 3012630, 3514735, 4217682, 7029470, 10544205, 21088410]

約数ペア:

[(1, 21088410), (2, 10544205), (3, 7029470), (5, 4217682), (6, 3514735), (7, 3012630), (10, 2108841), (14, 1506315), (15, 1405894), (21, 1004210), (30, 702947), (35, 602526), (42, 502105), (70, 301263), (105, 200842), (137, 153930), (210, 100421), (274, 76965), (411, 51310), (685, 30786), (733, 28770), (822, 25655), (959, 21990), (1370, 15393), (1466, 14385), (1918, 10995), (2055, 10262), (2199, 9590), (2877, 7330), (3665, 5754), (4110, 5131), (4398, 4795)]