20855618

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 37601280

約数和(自身を除く): 16745662

約数列:

[1, 2, 7, 14, 23, 46, 161, 239, 271, 322, 478, 542, 1673, 1897, 3346, 3794, 5497, 6233, 10994, 12466, 38479, 43631, 64769, 76958, 87262, 129538, 453383, 906766, 1489687, 2979374, 10427809, 20855618]

約数ペア:

[(1, 20855618), (2, 10427809), (7, 2979374), (14, 1489687), (23, 906766), (46, 453383), (161, 129538), (239, 87262), (271, 76958), (322, 64769), (478, 43631), (542, 38479), (1673, 12466), (1897, 10994), (3346, 6233), (3794, 5497)]