19809486

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{811}}^1$

素因数の和:901

約数の個数: 48

約数和(自身を含む): 45601920

約数和(自身を除く): 25792434

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 59, 69, 118, 138, 177, 207, 354, 414, 531, 811, 1062, 1357, 1622, 2433, 2714, 4071, 4866, 7299, 8142, 12213, 14598, 18653, 24426, 37306, 47849, 55959, 95698, 111918, 143547, 167877, 287094, 335754, 430641, 861282, 1100527, 2201054, 3301581, 6603162, 9904743, 19809486]

約数ペア:

[(1, 19809486), (2, 9904743), (3, 6603162), (6, 3301581), (9, 2201054), (18, 1100527), (23, 861282), (46, 430641), (59, 335754), (69, 287094), (118, 167877), (138, 143547), (177, 111918), (207, 95698), (354, 55959), (414, 47849), (531, 37306), (811, 24426), (1062, 18653), (1357, 14598), (1622, 12213), (2433, 8142), (2714, 7299), (4071, 4866)]