28032705

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{21481}}^1$

素因数の和:21521

約数の個数: 24

約数和(自身を含む): 50267880

約数和(自身を除く): 22235175

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 21481, 64443, 107405, 193329, 322215, 622949, 966645, 1868847, 3114745, 5606541, 9344235, 28032705]

約数ペア:

[(1, 28032705), (3, 9344235), (5, 5606541), (9, 3114745), (15, 1868847), (29, 966645), (45, 622949), (87, 322215), (145, 193329), (261, 107405), (435, 64443), (1305, 21481)]