21408684

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2053}}^1$

素因数の和:2150

約数の個数: 48

約数和(自身を含む): 55211520

約数和(自身を除く): 33802836

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 79, 132, 158, 237, 316, 474, 869, 948, 1738, 2053, 2607, 3476, 4106, 5214, 6159, 8212, 10428, 12318, 22583, 24636, 45166, 67749, 90332, 135498, 162187, 270996, 324374, 486561, 648748, 973122, 1784057, 1946244, 3568114, 5352171, 7136228, 10704342, 21408684]

約数ペア:

[(1, 21408684), (2, 10704342), (3, 7136228), (4, 5352171), (6, 3568114), (11, 1946244), (12, 1784057), (22, 973122), (33, 648748), (44, 486561), (66, 324374), (79, 270996), (132, 162187), (158, 135498), (237, 90332), (316, 67749), (474, 45166), (869, 24636), (948, 22583), (1738, 12318), (2053, 10428), (2607, 8212), (3476, 6159), (4106, 5214)]