18419918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{617}}^1$

素因数の和:712

約数の個数: 32

約数和(自身を含む): 32037120

約数和(自身を除く): 13617202

約数列:

[1, 2, 11, 22, 23, 46, 59, 118, 253, 506, 617, 649, 1234, 1298, 1357, 2714, 6787, 13574, 14191, 14927, 28382, 29854, 36403, 72806, 156101, 312202, 400433, 800866, 837269, 1674538, 9209959, 18419918]

約数ペア:

[(1, 18419918), (2, 9209959), (11, 1674538), (22, 837269), (23, 800866), (46, 400433), (59, 312202), (118, 156101), (253, 72806), (506, 36403), (617, 29854), (649, 28382), (1234, 14927), (1298, 14191), (1357, 13574), (2714, 6787)]