19971406

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{367}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 38790144

約数和(自身を除く): 18818738

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 91, 161, 169, 182, 299, 322, 338, 367, 598, 734, 1183, 2093, 2366, 2569, 3887, 4186, 4771, 5138, 7774, 8441, 9542, 16882, 27209, 33397, 54418, 59087, 62023, 66794, 109733, 118174, 124046, 219466, 434161, 768131, 868322, 1426529, 1536262, 2853058, 9985703, 19971406]

約数ペア:

[(1, 19971406), (2, 9985703), (7, 2853058), (13, 1536262), (14, 1426529), (23, 868322), (26, 768131), (46, 434161), (91, 219466), (161, 124046), (169, 118174), (182, 109733), (299, 66794), (322, 62023), (338, 59087), (367, 54418), (598, 33397), (734, 27209), (1183, 16882), (2093, 9542), (2366, 8441), (2569, 7774), (3887, 5138), (4186, 4771)]