20853108

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{709}}^1$

素因数の和:781

約数の個数: 72

約数和(自身を含む): 56856800

約数和(自身を除く): 36003692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 43, 57, 76, 86, 114, 129, 171, 172, 228, 258, 342, 387, 516, 684, 709, 774, 817, 1418, 1548, 1634, 2127, 2451, 2836, 3268, 4254, 4902, 6381, 7353, 8508, 9804, 12762, 13471, 14706, 25524, 26942, 29412, 30487, 40413, 53884, 60974, 80826, 91461, 121239, 121948, 161652, 182922, 242478, 274383, 365844, 484956, 548766, 579253, 1097532, 1158506, 1737759, 2317012, 3475518, 5213277, 6951036, 10426554, 20853108]

約数ペア:

[(1, 20853108), (2, 10426554), (3, 6951036), (4, 5213277), (6, 3475518), (9, 2317012), (12, 1737759), (18, 1158506), (19, 1097532), (36, 579253), (38, 548766), (43, 484956), (57, 365844), (76, 274383), (86, 242478), (114, 182922), (129, 161652), (171, 121948), (172, 121239), (228, 91461), (258, 80826), (342, 60974), (387, 53884), (516, 40413), (684, 30487), (709, 29412), (774, 26942), (817, 25524), (1418, 14706), (1548, 13471), (1634, 12762), (2127, 9804), (2451, 8508), (2836, 7353), (3268, 6381), (4254, 4902)]