28746921

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{22441}}^1$

素因数の和:22512

約数の個数: 16

約数和(自身を含む): 44524928

約数和(自身を除く): 15778007

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 22441, 67323, 157087, 471261, 1368901, 4106703, 9582307, 28746921]

約数ペア:

[(1, 28746921), (3, 9582307), (7, 4106703), (21, 1368901), (61, 471261), (183, 157087), (427, 67323), (1281, 22441)]