21620988

素因数分解:

$2^2\times 3^2\times {\mathrm{127}}^1\times {\mathrm{4729}}^1$

素因数の和:4866

約数の個数: 36

約数和(自身を含む): 55095040

約数和(自身を除く): 33474052

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 127, 254, 381, 508, 762, 1143, 1524, 2286, 4572, 4729, 9458, 14187, 18916, 28374, 42561, 56748, 85122, 170244, 600583, 1201166, 1801749, 2402332, 3603498, 5405247, 7206996, 10810494, 21620988]

約数ペア:

[(1, 21620988), (2, 10810494), (3, 7206996), (4, 5405247), (6, 3603498), (9, 2402332), (12, 1801749), (18, 1201166), (36, 600583), (127, 170244), (254, 85122), (381, 56748), (508, 42561), (762, 28374), (1143, 18916), (1524, 14187), (2286, 9458), (4572, 4729)]