21995530

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{883}}^1$

素因数の和:990

約数の個数: 32

約数和(自身を含む): 41243904

約数和(自身を除く): 19248374

約数列:

[1, 2, 5, 10, 47, 53, 94, 106, 235, 265, 470, 530, 883, 1766, 2491, 4415, 4982, 8830, 12455, 24910, 41501, 46799, 83002, 93598, 207505, 233995, 415010, 467990, 2199553, 4399106, 10997765, 21995530]

約数ペア:

[(1, 21995530), (2, 10997765), (5, 4399106), (10, 2199553), (47, 467990), (53, 415010), (94, 233995), (106, 207505), (235, 93598), (265, 83002), (470, 46799), (530, 41501), (883, 24910), (1766, 12455), (2491, 8830), (4415, 4982)]