20992518

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2213}}^1$

素因数の和:2269

約数の個数: 48

約数和(自身を含む): 49735296

約数和(自身を除く): 28742778

約数列:

[1, 2, 3, 6, 9, 17, 18, 31, 34, 51, 62, 93, 102, 153, 186, 279, 306, 527, 558, 1054, 1581, 2213, 3162, 4426, 4743, 6639, 9486, 13278, 19917, 37621, 39834, 68603, 75242, 112863, 137206, 205809, 225726, 338589, 411618, 617427, 677178, 1166251, 1234854, 2332502, 3498753, 6997506, 10496259, 20992518]

約数ペア:

[(1, 20992518), (2, 10496259), (3, 6997506), (6, 3498753), (9, 2332502), (17, 1234854), (18, 1166251), (31, 677178), (34, 617427), (51, 411618), (62, 338589), (93, 225726), (102, 205809), (153, 137206), (186, 112863), (279, 75242), (306, 68603), (527, 39834), (558, 37621), (1054, 19917), (1581, 13278), (2213, 9486), (3162, 6639), (4426, 4743)]