20284605

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{953}}^1$

素因数の和:1018

約数の個数: 48

約数和(自身を含む): 39289536

約数和(自身を除く): 19004931

約数列:

[1, 3, 5, 9, 11, 15, 33, 43, 45, 55, 99, 129, 165, 215, 387, 473, 495, 645, 953, 1419, 1935, 2365, 2859, 4257, 4765, 7095, 8577, 10483, 14295, 21285, 31449, 40979, 42885, 52415, 94347, 122937, 157245, 204895, 368811, 450769, 471735, 614685, 1352307, 1844055, 2253845, 4056921, 6761535, 20284605]

約数ペア:

[(1, 20284605), (3, 6761535), (5, 4056921), (9, 2253845), (11, 1844055), (15, 1352307), (33, 614685), (43, 471735), (45, 450769), (55, 368811), (99, 204895), (129, 157245), (165, 122937), (215, 94347), (387, 52415), (473, 42885), (495, 40979), (645, 31449), (953, 21285), (1419, 14295), (1935, 10483), (2365, 8577), (2859, 7095), (4257, 4765)]