21575235

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{571}}^1$

素因数の和:819

約数の個数: 32

約数和(自身を含む): 37889280

約数和(自身を除く): 16314045

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 229, 571, 687, 1145, 1713, 2519, 2855, 3435, 6281, 7557, 8565, 12595, 18843, 31405, 37785, 94215, 130759, 392277, 653795, 1438349, 1961385, 4315047, 7191745, 21575235]

約数ペア:

[(1, 21575235), (3, 7191745), (5, 4315047), (11, 1961385), (15, 1438349), (33, 653795), (55, 392277), (165, 130759), (229, 94215), (571, 37785), (687, 31405), (1145, 18843), (1713, 12595), (2519, 8565), (2855, 7557), (3435, 6281)]