19981852792

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{3229}}^1\times {\mathrm{70321}}^1$

素因数の和:73567

約数の個数: 32

約数和(自身を含む): 40885210800

約数和(自身を除く): 20903358008

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 3229, 6458, 12916, 25832, 35519, 70321, 71038, 140642, 142076, 281284, 284152, 562568, 773531, 1547062, 3094124, 6188248, 227066509, 454133018, 908266036, 1816532072, 2497731599, 4995463198, 9990926396, 19981852792]

約数ペア:

[(1, 19981852792), (2, 9990926396), (4, 4995463198), (8, 2497731599), (11, 1816532072), (22, 908266036), (44, 454133018), (88, 227066509), (3229, 6188248), (6458, 3094124), (12916, 1547062), (25832, 773531), (35519, 562568), (70321, 284152), (71038, 281284), (140642, 142076)]