20999448

素因数分解:

$2^3\times 3^2\times {\mathrm{53}}^1\times {\mathrm{5503}}^1$

素因数の和:5568

約数の個数: 48

約数和(自身を含む): 57957120

約数和(自身を除く): 36957672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 53, 72, 106, 159, 212, 318, 424, 477, 636, 954, 1272, 1908, 3816, 5503, 11006, 16509, 22012, 33018, 44024, 49527, 66036, 99054, 132072, 198108, 291659, 396216, 583318, 874977, 1166636, 1749954, 2333272, 2624931, 3499908, 5249862, 6999816, 10499724, 20999448]

約数ペア:

[(1, 20999448), (2, 10499724), (3, 6999816), (4, 5249862), (6, 3499908), (8, 2624931), (9, 2333272), (12, 1749954), (18, 1166636), (24, 874977), (36, 583318), (53, 396216), (72, 291659), (106, 198108), (159, 132072), (212, 99054), (318, 66036), (424, 49527), (477, 44024), (636, 33018), (954, 22012), (1272, 16509), (1908, 11006), (3816, 5503)]