20193994485

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{15991}}^1$

素因数の和:16239

約数の個数: 96

約数和(自身を含む): 42310993920

約数和(自身を除く): 22116999435

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 211, 285, 315, 399, 633, 665, 855, 1055, 1197, 1477, 1899, 1995, 3165, 4009, 4431, 5985, 7385, 9495, 12027, 13293, 15991, 20045, 22155, 28063, 36081, 47973, 60135, 66465, 79955, 84189, 111937, 140315, 143919, 180405, 239865, 252567, 303829, 335811, 420945, 559685, 719595, 911487, 1007433, 1262835, 1519145, 1679055, 2126803, 2734461, 3374101, 4557435, 5037165, 6380409, 10122303, 10634015, 13672305, 16870505, 19141227, 23618707, 30366909, 31902045, 50611515, 64107919, 70856121, 95706135, 118093535, 151834545, 192323757, 212568363, 320539595, 354280605, 448755433, 576971271, 961618785, 1062841815, 1346266299, 2243777165, 2884856355, 4038798897, 6731331495, 20193994485]

約数ペア:

[(1, 20193994485), (3, 6731331495), (5, 4038798897), (7, 2884856355), (9, 2243777165), (15, 1346266299), (19, 1062841815), (21, 961618785), (35, 576971271), (45, 448755433), (57, 354280605), (63, 320539595), (95, 212568363), (105, 192323757), (133, 151834545), (171, 118093535), (211, 95706135), (285, 70856121), (315, 64107919), (399, 50611515), (633, 31902045), (665, 30366909), (855, 23618707), (1055, 19141227), (1197, 16870505), (1477, 13672305), (1899, 10634015), (1995, 10122303), (3165, 6380409), (4009, 5037165), (4431, 4557435), (5985, 3374101), (7385, 2734461), (9495, 2126803), (12027, 1679055), (13293, 1519145), (15991, 1262835), (20045, 1007433), (22155, 911487), (28063, 719595), (36081, 559685), (47973, 420945), (60135, 335811), (66465, 303829), (79955, 252567), (84189, 239865), (111937, 180405), (140315, 143919)]