20668356

素因数分解:

$2^2\times 3^2\times {\mathrm{569}}^1\times {\mathrm{1009}}^1$

素因数の和:1588

約数の個数: 36

約数和(自身を含む): 52388700

約数和(自身を除く): 31720344

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 569, 1009, 1138, 1707, 2018, 2276, 3027, 3414, 4036, 5121, 6054, 6828, 9081, 10242, 12108, 18162, 20484, 36324, 574121, 1148242, 1722363, 2296484, 3444726, 5167089, 6889452, 10334178, 20668356]

約数ペア:

[(1, 20668356), (2, 10334178), (3, 6889452), (4, 5167089), (6, 3444726), (9, 2296484), (12, 1722363), (18, 1148242), (36, 574121), (569, 36324), (1009, 20484), (1138, 18162), (1707, 12108), (2018, 10242), (2276, 9081), (3027, 6828), (3414, 6054), (4036, 5121)]