18717118

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:209

約数の個数: 48

約数和(自身を含む): 34604928

約数和(自身を除く): 15887810

約数列:

[1, 2, 7, 14, 31, 49, 61, 62, 98, 101, 122, 202, 217, 427, 434, 707, 854, 1414, 1519, 1891, 2989, 3038, 3131, 3782, 4949, 5978, 6161, 6262, 9898, 12322, 13237, 21917, 26474, 43127, 43834, 86254, 92659, 153419, 185318, 190991, 301889, 306838, 381982, 603778, 1336937, 2673874, 9358559, 18717118]

約数ペア:

[(1, 18717118), (2, 9358559), (7, 2673874), (14, 1336937), (31, 603778), (49, 381982), (61, 306838), (62, 301889), (98, 190991), (101, 185318), (122, 153419), (202, 92659), (217, 86254), (427, 43834), (434, 43127), (707, 26474), (854, 21917), (1414, 13237), (1519, 12322), (1891, 9898), (2989, 6262), (3038, 6161), (3131, 5978), (3782, 4949)]