19864893

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 29417472

約数和(自身を除く): 9552579

約数列:

[1, 3, 23, 31, 37, 69, 93, 111, 251, 713, 753, 851, 1147, 2139, 2553, 3441, 5773, 7781, 9287, 17319, 23343, 26381, 27861, 79143, 178963, 213601, 287897, 536889, 640803, 863691, 6621631, 19864893]

約数ペア:

[(1, 19864893), (3, 6621631), (23, 863691), (31, 640803), (37, 536889), (69, 287897), (93, 213601), (111, 178963), (251, 79143), (713, 27861), (753, 26381), (851, 23343), (1147, 17319), (2139, 9287), (2553, 7781), (3441, 5773)]