20921296305

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{172213}}^1$

素因数の和:172330

約数の個数: 64

約数和(自身を含む): 41662010880

約数和(自身を除く): 20740714575

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 89, 91, 105, 195, 267, 273, 445, 455, 623, 1157, 1335, 1365, 1869, 3115, 3471, 5785, 8099, 9345, 17355, 24297, 40495, 121485, 172213, 516639, 861065, 1205491, 2238769, 2583195, 3616473, 6027455, 6716307, 11193845, 15326957, 15671383, 18082365, 33581535, 45980871, 47014149, 76634785, 78356915, 107288699, 199250441, 229904355, 235070745, 321866097, 536443495, 597751323, 996252205, 1394753087, 1609330485, 2988756615, 4184259261, 6973765435, 20921296305]

約数ペア:

[(1, 20921296305), (3, 6973765435), (5, 4184259261), (7, 2988756615), (13, 1609330485), (15, 1394753087), (21, 996252205), (35, 597751323), (39, 536443495), (65, 321866097), (89, 235070745), (91, 229904355), (105, 199250441), (195, 107288699), (267, 78356915), (273, 76634785), (445, 47014149), (455, 45980871), (623, 33581535), (1157, 18082365), (1335, 15671383), (1365, 15326957), (1869, 11193845), (3115, 6716307), (3471, 6027455), (5785, 3616473), (8099, 2583195), (9345, 2238769), (17355, 1205491), (24297, 861065), (40495, 516639), (121485, 172213)]