18755888

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{599}}^1$

素因数の和:729

約数の個数: 40

約数和(自身を含む): 38688000

約数和(自身を除く): 19932112

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 103, 152, 206, 304, 412, 599, 824, 1198, 1648, 1957, 2396, 3914, 4792, 7828, 9584, 11381, 15656, 22762, 31312, 45524, 61697, 91048, 123394, 182096, 246788, 493576, 987152, 1172243, 2344486, 4688972, 9377944, 18755888]

約数ペア:

[(1, 18755888), (2, 9377944), (4, 4688972), (8, 2344486), (16, 1172243), (19, 987152), (38, 493576), (76, 246788), (103, 182096), (152, 123394), (206, 91048), (304, 61697), (412, 45524), (599, 31312), (824, 22762), (1198, 15656), (1648, 11381), (1957, 9584), (2396, 7828), (3914, 4792)]