21994490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1409}}^1$

素因数の和:1646

約数の個数: 32

約数和(自身を含む): 45480960

約数和(自身を除く): 23486470

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 223, 446, 1115, 1409, 1561, 2230, 2818, 3122, 7045, 7805, 9863, 14090, 15610, 19726, 49315, 98630, 314207, 628414, 1571035, 2199449, 3142070, 4398898, 10997245, 21994490]

約数ペア:

[(1, 21994490), (2, 10997245), (5, 4398898), (7, 3142070), (10, 2199449), (14, 1571035), (35, 628414), (70, 314207), (223, 98630), (446, 49315), (1115, 19726), (1409, 15610), (1561, 14090), (2230, 9863), (2818, 7805), (3122, 7045)]