19874916

素因数分解:

$2^2\times 3^3\times {\mathrm{163}}^1\times {\mathrm{1129}}^1$

素因数の和:1305

約数の個数: 48

約数和(自身を含む): 51889600

約数和(自身を除く): 32014684

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 163, 326, 489, 652, 978, 1129, 1467, 1956, 2258, 2934, 3387, 4401, 4516, 5868, 6774, 8802, 10161, 13548, 17604, 20322, 30483, 40644, 60966, 121932, 184027, 368054, 552081, 736108, 1104162, 1656243, 2208324, 3312486, 4968729, 6624972, 9937458, 19874916]

約数ペア:

[(1, 19874916), (2, 9937458), (3, 6624972), (4, 4968729), (6, 3312486), (9, 2208324), (12, 1656243), (18, 1104162), (27, 736108), (36, 552081), (54, 368054), (108, 184027), (163, 121932), (326, 60966), (489, 40644), (652, 30483), (978, 20322), (1129, 17604), (1467, 13548), (1956, 10161), (2258, 8802), (2934, 6774), (3387, 5868), (4401, 4516)]