19810672

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2239}}^1$

素因数の和:2333

約数の個数: 40

約数和(自身を含む): 44441600

約数和(自身を除く): 24630928

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 158, 316, 553, 632, 1106, 1264, 2212, 2239, 4424, 4478, 8848, 8956, 15673, 17912, 31346, 35824, 62692, 125384, 176881, 250768, 353762, 707524, 1238167, 1415048, 2476334, 2830096, 4952668, 9905336, 19810672]

約数ペア:

[(1, 19810672), (2, 9905336), (4, 4952668), (7, 2830096), (8, 2476334), (14, 1415048), (16, 1238167), (28, 707524), (56, 353762), (79, 250768), (112, 176881), (158, 125384), (316, 62692), (553, 35824), (632, 31346), (1106, 17912), (1264, 15673), (2212, 8956), (2239, 8848), (4424, 4478)]