21872390

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{269}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 40590720

約数和(自身を除く): 18718330

約数列:

[1, 2, 5, 10, 47, 94, 173, 235, 269, 346, 470, 538, 865, 1345, 1730, 2690, 8131, 12643, 16262, 25286, 40655, 46537, 63215, 81310, 93074, 126430, 232685, 465370, 2187239, 4374478, 10936195, 21872390]

約数ペア:

[(1, 21872390), (2, 10936195), (5, 4374478), (10, 2187239), (47, 465370), (94, 232685), (173, 126430), (235, 93074), (269, 81310), (346, 63215), (470, 46537), (538, 40655), (865, 25286), (1345, 16262), (1730, 12643), (2690, 8131)]