20717503497

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1\times {\mathrm{811}}^1$

素因数の和:1254

約数の個数: 48

約数和(自身を含む): 30621689280

約数和(自身を除く): 9904185783

約数列:

[1, 3, 9, 101, 157, 179, 303, 471, 537, 811, 909, 1413, 1611, 2433, 7299, 15857, 18079, 28103, 47571, 54237, 81911, 84309, 127327, 142713, 145169, 162711, 245733, 252927, 381981, 435507, 737199, 1145943, 1306521, 2838403, 8515209, 12860027, 14662069, 22791533, 25545627, 38580081, 43986207, 68374599, 115740243, 131958621, 205123797, 2301944833, 6905834499, 20717503497]

約数ペア:

[(1, 20717503497), (3, 6905834499), (9, 2301944833), (101, 205123797), (157, 131958621), (179, 115740243), (303, 68374599), (471, 43986207), (537, 38580081), (811, 25545627), (909, 22791533), (1413, 14662069), (1611, 12860027), (2433, 8515209), (7299, 2838403), (15857, 1306521), (18079, 1145943), (28103, 737199), (47571, 435507), (54237, 381981), (81911, 252927), (84309, 245733), (127327, 162711), (142713, 145169)]