19128213

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 32235840

約数和(自身を除く): 13107627

約数列:

[1, 3, 9, 13, 17, 39, 51, 59, 117, 153, 163, 177, 221, 489, 531, 663, 767, 1003, 1467, 1989, 2119, 2301, 2771, 3009, 6357, 6903, 8313, 9027, 9617, 13039, 19071, 24939, 28851, 36023, 39117, 86553, 108069, 117351, 125021, 163489, 324207, 375063, 490467, 1125189, 1471401, 2125357, 6376071, 19128213]

約数ペア:

[(1, 19128213), (3, 6376071), (9, 2125357), (13, 1471401), (17, 1125189), (39, 490467), (51, 375063), (59, 324207), (117, 163489), (153, 125021), (163, 117351), (177, 108069), (221, 86553), (489, 39117), (531, 36023), (663, 28851), (767, 24939), (1003, 19071), (1467, 13039), (1989, 9617), (2119, 9027), (2301, 8313), (2771, 6903), (3009, 6357)]