20922538

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 40055040

約数和(自身を除く): 19132502

約数列:

[1, 2, 7, 13, 14, 26, 37, 74, 91, 169, 182, 239, 259, 338, 478, 481, 518, 962, 1183, 1673, 2366, 3107, 3346, 3367, 6214, 6253, 6734, 8843, 12506, 17686, 21749, 40391, 43498, 43771, 61901, 80782, 87542, 114959, 123802, 229918, 282737, 565474, 804713, 1494467, 1609426, 2988934, 10461269, 20922538]

約数ペア:

[(1, 20922538), (2, 10461269), (7, 2988934), (13, 1609426), (14, 1494467), (26, 804713), (37, 565474), (74, 282737), (91, 229918), (169, 123802), (182, 114959), (239, 87542), (259, 80782), (338, 61901), (478, 43771), (481, 43498), (518, 40391), (962, 21749), (1183, 17686), (1673, 12506), (2366, 8843), (3107, 6734), (3346, 6253), (3367, 6214)]