21980116

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{10427}}^1$

素因数の和:10479

約数の個数: 24

約数和(自身を含む): 42045696

約数和(自身を除く): 20065580

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 124, 527, 1054, 2108, 10427, 20854, 41708, 177259, 323237, 354518, 646474, 709036, 1292948, 5495029, 10990058, 21980116]

約数ペア:

[(1, 21980116), (2, 10990058), (4, 5495029), (17, 1292948), (31, 709036), (34, 646474), (62, 354518), (68, 323237), (124, 177259), (527, 41708), (1054, 20854), (2108, 10427)]