21604605

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1031}}^1$

素因数の和:1177

約数の個数: 32

約数和(自身を含む): 38043648

約数和(自身を除く): 16439043

約数列:

[1, 3, 5, 11, 15, 33, 55, 127, 165, 381, 635, 1031, 1397, 1905, 3093, 4191, 5155, 6985, 11341, 15465, 20955, 34023, 56705, 130937, 170115, 392811, 654685, 1440307, 1964055, 4320921, 7201535, 21604605]

約数ペア:

[(1, 21604605), (3, 7201535), (5, 4320921), (11, 1964055), (15, 1440307), (33, 654685), (55, 392811), (127, 170115), (165, 130937), (381, 56705), (635, 34023), (1031, 20955), (1397, 15465), (1905, 11341), (3093, 6985), (4191, 5155)]