19773392

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:435

約数の個数: 40

約数和(自身を含む): 39806976

約数和(自身を除く): 20033584

約数列:

[1, 2, 4, 8, 16, 37, 74, 127, 148, 254, 263, 296, 508, 526, 592, 1016, 1052, 2032, 2104, 4208, 4699, 9398, 9731, 18796, 19462, 33401, 37592, 38924, 66802, 75184, 77848, 133604, 155696, 267208, 534416, 1235837, 2471674, 4943348, 9886696, 19773392]

約数ペア:

[(1, 19773392), (2, 9886696), (4, 4943348), (8, 2471674), (16, 1235837), (37, 534416), (74, 267208), (127, 155696), (148, 133604), (254, 77848), (263, 75184), (296, 66802), (508, 38924), (526, 37592), (592, 33401), (1016, 19462), (1052, 18796), (2032, 9731), (2104, 9398), (4208, 4699)]