18109871838

素因数分解:

$2^1\times 3^3\times {\mathrm{523}}^1\times {\mathrm{641239}}^1$

素因数の和:641773

約数の個数: 32

約数和(自身を含む): 40321171200

約数和(自身を除く): 22211299362

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 523, 1046, 1569, 3138, 4707, 9414, 14121, 28242, 641239, 1282478, 1923717, 3847434, 5771151, 11542302, 17313453, 34626906, 335367997, 670735994, 1006103991, 2012207982, 3018311973, 6036623946, 9054935919, 18109871838]

約数ペア:

[(1, 18109871838), (2, 9054935919), (3, 6036623946), (6, 3018311973), (9, 2012207982), (18, 1006103991), (27, 670735994), (54, 335367997), (523, 34626906), (1046, 17313453), (1569, 11542302), (3138, 5771151), (4707, 3847434), (9414, 1923717), (14121, 1282478), (28242, 641239)]