17983959

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 28331520

約数和(自身を除く): 10347561

約数列:

[1, 3, 7, 21, 61, 101, 139, 183, 303, 417, 427, 707, 973, 1281, 2121, 2919, 6161, 8479, 14039, 18483, 25437, 42117, 43127, 59353, 98273, 129381, 178059, 294819, 856379, 2569137, 5994653, 17983959]

約数ペア:

[(1, 17983959), (3, 5994653), (7, 2569137), (21, 856379), (61, 294819), (101, 178059), (139, 129381), (183, 98273), (303, 59353), (417, 43127), (427, 42117), (707, 25437), (973, 18483), (1281, 14039), (2121, 8479), (2919, 6161)]