21530028

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1747}}^1$

素因数の和:1846

約数の個数: 48

約数和(自身を含む): 54817280

約数和(自身を除く): 33287252

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 79, 156, 158, 237, 316, 474, 948, 1027, 1747, 2054, 3081, 3494, 4108, 5241, 6162, 6988, 10482, 12324, 20964, 22711, 45422, 68133, 90844, 136266, 138013, 272532, 276026, 414039, 552052, 828078, 1656156, 1794169, 3588338, 5382507, 7176676, 10765014, 21530028]

約数ペア:

[(1, 21530028), (2, 10765014), (3, 7176676), (4, 5382507), (6, 3588338), (12, 1794169), (13, 1656156), (26, 828078), (39, 552052), (52, 414039), (78, 276026), (79, 272532), (156, 138013), (158, 136266), (237, 90844), (316, 68133), (474, 45422), (948, 22711), (1027, 20964), (1747, 12324), (2054, 10482), (3081, 6988), (3494, 6162), (4108, 5241)]