21885783

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 32440320

約数和(自身を除く): 10554537

約数列:

[1, 3, 17, 31, 51, 93, 109, 127, 327, 381, 527, 1581, 1853, 2159, 3379, 3937, 5559, 6477, 10137, 11811, 13843, 41529, 57443, 66929, 172329, 200787, 235331, 429133, 705993, 1287399, 7295261, 21885783]

約数ペア:

[(1, 21885783), (3, 7295261), (17, 1287399), (31, 705993), (51, 429133), (93, 235331), (109, 200787), (127, 172329), (327, 66929), (381, 57443), (527, 41529), (1581, 13843), (1853, 11811), (2159, 10137), (3379, 6477), (3937, 5559)]