19866158

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 14002642

約数列:

[1, 2, 13, 23, 26, 46, 139, 239, 278, 299, 478, 598, 1807, 3107, 3197, 3614, 5497, 6214, 6394, 10994, 33221, 41561, 66442, 71461, 83122, 142922, 431873, 764083, 863746, 1528166, 9933079, 19866158]

約数ペア:

[(1, 19866158), (2, 9933079), (13, 1528166), (23, 863746), (26, 764083), (46, 431873), (139, 142922), (239, 83122), (278, 71461), (299, 66442), (478, 41561), (598, 33221), (1807, 10994), (3107, 6394), (3197, 6214), (3614, 5497)]