18780534

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 42290352

約数和(自身を除く): 23509818

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 163, 173, 222, 326, 333, 346, 489, 519, 666, 978, 1038, 1467, 1557, 2934, 3114, 6031, 6401, 12062, 12802, 18093, 19203, 28199, 36186, 38406, 54279, 56398, 57609, 84597, 108558, 115218, 169194, 253791, 507582, 1043363, 2086726, 3130089, 6260178, 9390267, 18780534]

約数ペア:

[(1, 18780534), (2, 9390267), (3, 6260178), (6, 3130089), (9, 2086726), (18, 1043363), (37, 507582), (74, 253791), (111, 169194), (163, 115218), (173, 108558), (222, 84597), (326, 57609), (333, 56398), (346, 54279), (489, 38406), (519, 36186), (666, 28199), (978, 19203), (1038, 18093), (1467, 12802), (1557, 12062), (2934, 6401), (3114, 6031)]