20657904

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{13883}}^1$

素因数の和:13925

約数の個数: 40

約数和(自身を含む): 55091712

約数和(自身を除く): 34433808

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 93, 124, 186, 248, 372, 496, 744, 1488, 13883, 27766, 41649, 55532, 83298, 111064, 166596, 222128, 333192, 430373, 666384, 860746, 1291119, 1721492, 2582238, 3442984, 5164476, 6885968, 10328952, 20657904]

約数ペア:

[(1, 20657904), (2, 10328952), (3, 6885968), (4, 5164476), (6, 3442984), (8, 2582238), (12, 1721492), (16, 1291119), (24, 860746), (31, 666384), (48, 430373), (62, 333192), (93, 222128), (124, 166596), (186, 111064), (248, 83298), (372, 55532), (496, 41649), (744, 27766), (1488, 13883)]