21997368

素因数分解:

$2^3\times 3^2\times {\mathrm{193}}^1\times {\mathrm{1583}}^1$

素因数の和:1788

約数の個数: 48

約数和(自身を含む): 59922720

約数和(自身を除く): 37925352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 193, 386, 579, 772, 1158, 1544, 1583, 1737, 2316, 3166, 3474, 4632, 4749, 6332, 6948, 9498, 12664, 13896, 14247, 18996, 28494, 37992, 56988, 113976, 305519, 611038, 916557, 1222076, 1833114, 2444152, 2749671, 3666228, 5499342, 7332456, 10998684, 21997368]

約数ペア:

[(1, 21997368), (2, 10998684), (3, 7332456), (4, 5499342), (6, 3666228), (8, 2749671), (9, 2444152), (12, 1833114), (18, 1222076), (24, 916557), (36, 611038), (72, 305519), (193, 113976), (386, 56988), (579, 37992), (772, 28494), (1158, 18996), (1544, 14247), (1583, 13896), (1737, 12664), (2316, 9498), (3166, 6948), (3474, 6332), (4632, 4749)]