21519996

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{757}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 52975104

約数和(自身を除く): 31455108

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 103, 138, 206, 276, 309, 412, 618, 757, 1236, 1514, 2271, 2369, 3028, 4542, 4738, 7107, 9084, 9476, 14214, 17411, 28428, 34822, 52233, 69644, 77971, 104466, 155942, 208932, 233913, 311884, 467826, 935652, 1793333, 3586666, 5379999, 7173332, 10759998, 21519996]

約数ペア:

[(1, 21519996), (2, 10759998), (3, 7173332), (4, 5379999), (6, 3586666), (12, 1793333), (23, 935652), (46, 467826), (69, 311884), (92, 233913), (103, 208932), (138, 155942), (206, 104466), (276, 77971), (309, 69644), (412, 52233), (618, 34822), (757, 28428), (1236, 17411), (1514, 14214), (2271, 9476), (2369, 9084), (3028, 7107), (4542, 4738)]