20001222

素因数分解:

$2^1\times 3^3\times {\mathrm{173}}^1\times {\mathrm{2141}}^1$

素因数の和:2325

約数の個数: 32

約数和(自身を含む): 44724960

約数和(自身を除く): 24723738

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 173, 346, 519, 1038, 1557, 2141, 3114, 4282, 4671, 6423, 9342, 12846, 19269, 38538, 57807, 115614, 370393, 740786, 1111179, 2222358, 3333537, 6667074, 10000611, 20001222]

約数ペア:

[(1, 20001222), (2, 10000611), (3, 6667074), (6, 3333537), (9, 2222358), (18, 1111179), (27, 740786), (54, 370393), (173, 115614), (346, 57807), (519, 38538), (1038, 19269), (1557, 12846), (2141, 9342), (3114, 6423), (4282, 4671)]