20391008

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1093}}^1$

素因数の和:1167

約数の個数: 48

約数和(自身を含む): 44661456

約数和(自身を除く): 24270448

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 53, 88, 106, 176, 212, 352, 424, 583, 848, 1093, 1166, 1696, 2186, 2332, 4372, 4664, 8744, 9328, 12023, 17488, 18656, 24046, 34976, 48092, 57929, 96184, 115858, 192368, 231716, 384736, 463432, 637219, 926864, 1274438, 1853728, 2548876, 5097752, 10195504, 20391008]

約数ペア:

[(1, 20391008), (2, 10195504), (4, 5097752), (8, 2548876), (11, 1853728), (16, 1274438), (22, 926864), (32, 637219), (44, 463432), (53, 384736), (88, 231716), (106, 192368), (176, 115858), (212, 96184), (352, 57929), (424, 48092), (583, 34976), (848, 24046), (1093, 18656), (1166, 17488), (1696, 12023), (2186, 9328), (2332, 8744), (4372, 4664)]