20653548

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{257}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 49961184

約数和(自身を除く): 29307636

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 181, 222, 257, 362, 444, 514, 543, 724, 771, 1028, 1086, 1542, 2172, 3084, 6697, 9509, 13394, 19018, 20091, 26788, 28527, 38036, 40182, 46517, 57054, 80364, 93034, 114108, 139551, 186068, 279102, 558204, 1721129, 3442258, 5163387, 6884516, 10326774, 20653548]

約数ペア:

[(1, 20653548), (2, 10326774), (3, 6884516), (4, 5163387), (6, 3442258), (12, 1721129), (37, 558204), (74, 279102), (111, 186068), (148, 139551), (181, 114108), (222, 93034), (257, 80364), (362, 57054), (444, 46517), (514, 40182), (543, 38036), (724, 28527), (771, 26788), (1028, 20091), (1086, 19018), (1542, 13394), (2172, 9509), (3084, 6697)]