20015512

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11971}}^1$

素因数の和:12007

約数の個数: 32

約数和(自身を含む): 43099200

約数和(自身を除く): 23083688

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 11971, 23942, 47884, 95768, 131681, 227449, 263362, 454898, 526724, 909796, 1053448, 1819592, 2501939, 5003878, 10007756, 20015512]

約数ペア:

[(1, 20015512), (2, 10007756), (4, 5003878), (8, 2501939), (11, 1819592), (19, 1053448), (22, 909796), (38, 526724), (44, 454898), (76, 263362), (88, 227449), (152, 131681), (209, 95768), (418, 47884), (836, 23942), (1672, 11971)]