20102138

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{383}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 36274176

約数和(自身を除く): 16172038

約数列:

[1, 2, 7, 14, 23, 46, 161, 163, 322, 326, 383, 766, 1141, 2282, 2681, 3749, 5362, 7498, 8809, 17618, 26243, 52486, 61663, 62429, 123326, 124858, 437003, 874006, 1435867, 2871734, 10051069, 20102138]

約数ペア:

[(1, 20102138), (2, 10051069), (7, 2871734), (14, 1435867), (23, 874006), (46, 437003), (161, 124858), (163, 123326), (322, 62429), (326, 61663), (383, 52486), (766, 26243), (1141, 17618), (2282, 8809), (2681, 7498), (3749, 5362)]