20153203749

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{15671}}^1$

素因数の和:15970

約数の個数: 48

約数和(自身を含む): 33738681600

約数和(自身を除く): 13585477851

約数列:

[1, 3, 7, 9, 21, 63, 137, 149, 411, 447, 959, 1043, 1233, 1341, 2877, 3129, 8631, 9387, 15671, 20413, 47013, 61239, 109697, 141039, 142891, 183717, 329091, 428673, 987273, 1286019, 2146927, 2334979, 6440781, 7004937, 15028489, 16344853, 19322343, 21014811, 45085467, 49034559, 135256401, 147103677, 319892123, 959676369, 2239244861, 2879029107, 6717734583, 20153203749]

約数ペア:

[(1, 20153203749), (3, 6717734583), (7, 2879029107), (9, 2239244861), (21, 959676369), (63, 319892123), (137, 147103677), (149, 135256401), (411, 49034559), (447, 45085467), (959, 21014811), (1043, 19322343), (1233, 16344853), (1341, 15028489), (2877, 7004937), (3129, 6440781), (8631, 2334979), (9387, 2146927), (15671, 1286019), (20413, 987273), (47013, 428673), (61239, 329091), (109697, 183717), (141039, 142891)]