21648735

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9433}}^1$

素因数の和:9464

約数の個数: 32

約数和(自身を含む): 40754880

約数和(自身を除く): 19106145

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 9433, 28299, 47165, 84897, 141495, 160361, 254691, 424485, 481083, 801805, 1273455, 1443249, 2405415, 4329747, 7216245, 21648735]

約数ペア:

[(1, 21648735), (3, 7216245), (5, 4329747), (9, 2405415), (15, 1443249), (17, 1273455), (27, 801805), (45, 481083), (51, 424485), (85, 254691), (135, 160361), (153, 141495), (255, 84897), (459, 47165), (765, 28299), (2295, 9433)]