20807764978

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1\times {\mathrm{20663}}^1$

素因数の和:21199

約数の個数: 64

約数和(自身を含む): 41991892992

約数和(自身を除く): 21184128014

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 182, 286, 503, 1001, 1006, 2002, 3521, 5533, 6539, 7042, 11066, 13078, 20663, 38731, 41326, 45773, 71929, 77462, 91546, 143858, 144641, 227293, 268619, 289282, 454586, 503503, 537238, 1007006, 1591051, 1880333, 2954809, 3182102, 3760666, 5909618, 10393489, 20683663, 20786978, 41367326, 72754423, 114328379, 135115357, 145508846, 228656758, 270230714, 800298653, 945807499, 1486268927, 1600597306, 1891614998, 2972537854, 10403882489, 20807764978]

約数ペア:

[(1, 20807764978), (2, 10403882489), (7, 2972537854), (11, 1891614998), (13, 1600597306), (14, 1486268927), (22, 945807499), (26, 800298653), (77, 270230714), (91, 228656758), (143, 145508846), (154, 135115357), (182, 114328379), (286, 72754423), (503, 41367326), (1001, 20786978), (1006, 20683663), (2002, 10393489), (3521, 5909618), (5533, 3760666), (6539, 3182102), (7042, 2954809), (11066, 1880333), (13078, 1591051), (20663, 1007006), (38731, 537238), (41326, 503503), (45773, 454586), (71929, 289282), (77462, 268619), (91546, 227293), (143858, 144641)]