20697208

素因数分解:

$2^3\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1427}}^1$

素因数の和:1484

約数の個数: 48

約数和(自身を含む): 46395720

約数和(自身を除く): 25698512

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 49, 56, 74, 98, 148, 196, 259, 296, 392, 518, 1036, 1427, 1813, 2072, 2854, 3626, 5708, 7252, 9989, 11416, 14504, 19978, 39956, 52799, 69923, 79912, 105598, 139846, 211196, 279692, 369593, 422392, 559384, 739186, 1478372, 2587151, 2956744, 5174302, 10348604, 20697208]

約数ペア:

[(1, 20697208), (2, 10348604), (4, 5174302), (7, 2956744), (8, 2587151), (14, 1478372), (28, 739186), (37, 559384), (49, 422392), (56, 369593), (74, 279692), (98, 211196), (148, 139846), (196, 105598), (259, 79912), (296, 69923), (392, 52799), (518, 39956), (1036, 19978), (1427, 14504), (1813, 11416), (2072, 9989), (2854, 7252), (3626, 5708)]