21404570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{6277}}^1$

素因数の和:6326

約数の個数: 32

約数和(自身を含む): 43393536

約数和(自身を除く): 21988966

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 155, 310, 341, 682, 1705, 3410, 6277, 12554, 31385, 62770, 69047, 138094, 194587, 345235, 389174, 690470, 972935, 1945870, 2140457, 4280914, 10702285, 21404570]

約数ペア:

[(1, 21404570), (2, 10702285), (5, 4280914), (10, 2140457), (11, 1945870), (22, 972935), (31, 690470), (55, 389174), (62, 345235), (110, 194587), (155, 138094), (310, 69047), (341, 62770), (682, 31385), (1705, 12554), (3410, 6277)]