19722222

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{947}}^1$

素因数の和:1057

約数の個数: 48

約数和(自身を含む): 46584720

約数和(自身を除く): 26862498

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 89, 117, 178, 234, 267, 534, 801, 947, 1157, 1602, 1894, 2314, 2841, 3471, 5682, 6942, 8523, 10413, 12311, 17046, 20826, 24622, 36933, 73866, 84283, 110799, 168566, 221598, 252849, 505698, 758547, 1095679, 1517094, 2191358, 3287037, 6574074, 9861111, 19722222]

約数ペア:

[(1, 19722222), (2, 9861111), (3, 6574074), (6, 3287037), (9, 2191358), (13, 1517094), (18, 1095679), (26, 758547), (39, 505698), (78, 252849), (89, 221598), (117, 168566), (178, 110799), (234, 84283), (267, 73866), (534, 36933), (801, 24622), (947, 20826), (1157, 17046), (1602, 12311), (1894, 10413), (2314, 8523), (2841, 6942), (3471, 5682)]