19886370

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{337}}^1$

素因数の和:635

約数の個数: 64

約数和(自身を含む): 54902016

約数和(自身を除く): 35015646

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 281, 337, 562, 674, 843, 1011, 1405, 1685, 1686, 1967, 2022, 2359, 2810, 3370, 3934, 4215, 4718, 5055, 5901, 7077, 8430, 9835, 10110, 11795, 11802, 14154, 19670, 23590, 29505, 35385, 59010, 70770, 94697, 189394, 284091, 473485, 568182, 662879, 946970, 1325758, 1420455, 1988637, 2840910, 3314395, 3977274, 6628790, 9943185, 19886370]

約数ペア:

[(1, 19886370), (2, 9943185), (3, 6628790), (5, 3977274), (6, 3314395), (7, 2840910), (10, 1988637), (14, 1420455), (15, 1325758), (21, 946970), (30, 662879), (35, 568182), (42, 473485), (70, 284091), (105, 189394), (210, 94697), (281, 70770), (337, 59010), (562, 35385), (674, 29505), (843, 23590), (1011, 19670), (1405, 14154), (1685, 11802), (1686, 11795), (1967, 10110), (2022, 9835), (2359, 8430), (2810, 7077), (3370, 5901), (3934, 5055), (4215, 4718)]