28721426

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 47736000

約数和(自身を除く): 19014574

約数列:

[1, 2, 19, 29, 38, 58, 67, 134, 389, 551, 778, 1102, 1273, 1943, 2546, 3886, 7391, 11281, 14782, 22562, 26063, 36917, 52126, 73834, 214339, 428678, 495197, 755827, 990394, 1511654, 14360713, 28721426]

約数ペア:

[(1, 28721426), (2, 14360713), (19, 1511654), (29, 990394), (38, 755827), (58, 495197), (67, 428678), (134, 214339), (389, 73834), (551, 52126), (778, 36917), (1102, 26063), (1273, 22562), (1943, 14782), (2546, 11281), (3886, 7391)]