20997298

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1069}}^1$

素因数の和:1162

約数の個数: 32

約数和(自身を含む): 38211840

約数和(自身を除く): 17214542

約数列:

[1, 2, 7, 14, 23, 46, 61, 122, 161, 322, 427, 854, 1069, 1403, 2138, 2806, 7483, 9821, 14966, 19642, 24587, 49174, 65209, 130418, 172109, 344218, 456463, 912926, 1499807, 2999614, 10498649, 20997298]

約数ペア:

[(1, 20997298), (2, 10498649), (7, 2999614), (14, 1499807), (23, 912926), (46, 456463), (61, 344218), (122, 172109), (161, 130418), (322, 65209), (427, 49174), (854, 24587), (1069, 19642), (1403, 14966), (2138, 9821), (2806, 7483)]