21531798

素因数分解:

$2^1\times 3^3\times {\mathrm{373}}^1\times {\mathrm{1069}}^1$

素因数の和:1453

約数の個数: 32

約数和(自身を含む): 48021600

約数和(自身を除く): 26489802

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 373, 746, 1069, 1119, 2138, 2238, 3207, 3357, 6414, 6714, 9621, 10071, 19242, 20142, 28863, 57726, 398737, 797474, 1196211, 2392422, 3588633, 7177266, 10765899, 21531798]

約数ペア:

[(1, 21531798), (2, 10765899), (3, 7177266), (6, 3588633), (9, 2392422), (18, 1196211), (27, 797474), (54, 398737), (373, 57726), (746, 28863), (1069, 20142), (1119, 19242), (2138, 10071), (2238, 9621), (3207, 6714), (3357, 6414)]