19647118

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:264

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 12286322

約数列:

[1, 2, 31, 41, 59, 62, 82, 118, 131, 262, 1271, 1829, 2419, 2542, 3658, 4061, 4838, 5371, 7729, 8122, 10742, 15458, 74989, 149978, 166501, 239599, 316889, 333002, 479198, 633778, 9823559, 19647118]

約数ペア:

[(1, 19647118), (2, 9823559), (31, 633778), (41, 479198), (59, 333002), (62, 316889), (82, 239599), (118, 166501), (131, 149978), (262, 74989), (1271, 15458), (1829, 10742), (2419, 8122), (2542, 7729), (3658, 5371), (4061, 4838)]