78865143

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 129332736

約数和(自身を除く): 50467593

約数列:

[1, 3, 7, 19, 21, 57, 101, 103, 133, 303, 309, 361, 399, 707, 721, 1083, 1919, 1957, 2121, 2163, 2527, 5757, 5871, 7581, 10403, 13433, 13699, 31209, 36461, 37183, 40299, 41097, 72821, 109383, 111549, 197657, 218463, 255227, 260281, 592971, 765681, 780843, 1383599, 3755483, 4150797, 11266449, 26288381, 78865143]

約数ペア:

[(1, 78865143), (3, 26288381), (7, 11266449), (19, 4150797), (21, 3755483), (57, 1383599), (101, 780843), (103, 765681), (133, 592971), (303, 260281), (309, 255227), (361, 218463), (399, 197657), (707, 111549), (721, 109383), (1083, 72821), (1919, 41097), (1957, 40299), (2121, 37183), (2163, 36461), (2527, 31209), (5757, 13699), (5871, 13433), (7581, 10403)]