20778534

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4457}}^1$

素因数の和:4509

約数の個数: 48

約数和(自身を含む): 52854048

約数和(自身を除く): 32075514

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 63, 74, 111, 126, 222, 259, 333, 518, 666, 777, 1554, 2331, 4457, 4662, 8914, 13371, 26742, 31199, 40113, 62398, 80226, 93597, 164909, 187194, 280791, 329818, 494727, 561582, 989454, 1154363, 1484181, 2308726, 2968362, 3463089, 6926178, 10389267, 20778534]

約数ペア:

[(1, 20778534), (2, 10389267), (3, 6926178), (6, 3463089), (7, 2968362), (9, 2308726), (14, 1484181), (18, 1154363), (21, 989454), (37, 561582), (42, 494727), (63, 329818), (74, 280791), (111, 187194), (126, 164909), (222, 93597), (259, 80226), (333, 62398), (518, 40113), (666, 31199), (777, 26742), (1554, 13371), (2331, 8914), (4457, 4662)]