19634428

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{113}}^1\times {\mathrm{359}}^1$

素因数の和:498

約数の個数: 36

約数和(自身を含む): 38208240

約数和(自身を除く): 18573812

約数列:

[1, 2, 4, 11, 22, 44, 113, 121, 226, 242, 359, 452, 484, 718, 1243, 1436, 2486, 3949, 4972, 7898, 13673, 15796, 27346, 40567, 43439, 54692, 81134, 86878, 162268, 173756, 446237, 892474, 1784948, 4908607, 9817214, 19634428]

約数ペア:

[(1, 19634428), (2, 9817214), (4, 4908607), (11, 1784948), (22, 892474), (44, 446237), (113, 173756), (121, 162268), (226, 86878), (242, 81134), (359, 54692), (452, 43439), (484, 40567), (718, 27346), (1243, 15796), (1436, 13673), (2486, 7898), (3949, 4972)]