20979762

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2521}}^1$

素因数の和:2618

約数の個数: 32

約数和(自身を含む): 44790720

約数和(自身を除く): 23810958

約数列:

[1, 2, 3, 6, 19, 38, 57, 73, 114, 146, 219, 438, 1387, 2521, 2774, 4161, 5042, 7563, 8322, 15126, 47899, 95798, 143697, 184033, 287394, 368066, 552099, 1104198, 3496627, 6993254, 10489881, 20979762]

約数ペア:

[(1, 20979762), (2, 10489881), (3, 6993254), (6, 3496627), (19, 1104198), (38, 552099), (57, 368066), (73, 287394), (114, 184033), (146, 143697), (219, 95798), (438, 47899), (1387, 15126), (2521, 8322), (2774, 7563), (4161, 5042)]