21890196

素因数分解:

$2^2\times 3^3\times {\mathrm{157}}^1\times {\mathrm{1291}}^1$

素因数の和:1461

約数の個数: 48

約数和(自身を含む): 57158080

約数和(自身を除く): 35267884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 157, 314, 471, 628, 942, 1291, 1413, 1884, 2582, 2826, 3873, 4239, 5164, 5652, 7746, 8478, 11619, 15492, 16956, 23238, 34857, 46476, 69714, 139428, 202687, 405374, 608061, 810748, 1216122, 1824183, 2432244, 3648366, 5472549, 7296732, 10945098, 21890196]

約数ペア:

[(1, 21890196), (2, 10945098), (3, 7296732), (4, 5472549), (6, 3648366), (9, 2432244), (12, 1824183), (18, 1216122), (27, 810748), (36, 608061), (54, 405374), (108, 202687), (157, 139428), (314, 69714), (471, 46476), (628, 34857), (942, 23238), (1291, 16956), (1413, 15492), (1884, 11619), (2582, 8478), (2826, 7746), (3873, 5652), (4239, 5164)]