21319700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{12541}}^1$

素因数の和:12572

約数の個数: 36

約数和(自身を含む): 48989052

約数和(自身を除く): 27669352

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 12541, 25082, 50164, 62705, 125410, 213197, 250820, 313525, 426394, 627050, 852788, 1065985, 1254100, 2131970, 4263940, 5329925, 10659850, 21319700]

約数ペア:

[(1, 21319700), (2, 10659850), (4, 5329925), (5, 4263940), (10, 2131970), (17, 1254100), (20, 1065985), (25, 852788), (34, 627050), (50, 426394), (68, 313525), (85, 250820), (100, 213197), (170, 125410), (340, 62705), (425, 50164), (850, 25082), (1700, 12541)]