20870223

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{887}}^1$

素因数の和:955

約数の個数: 32

約数和(自身を含む): 32735232

約数和(自身を除く): 11865009

約数列:

[1, 3, 11, 23, 31, 33, 69, 93, 253, 341, 713, 759, 887, 1023, 2139, 2661, 7843, 9757, 20401, 23529, 27497, 29271, 61203, 82491, 224411, 302467, 632431, 673233, 907401, 1897293, 6956741, 20870223]

約数ペア:

[(1, 20870223), (3, 6956741), (11, 1897293), (23, 907401), (31, 673233), (33, 632431), (69, 302467), (93, 224411), (253, 82491), (341, 61203), (713, 29271), (759, 27497), (887, 23529), (1023, 20401), (2139, 9757), (2661, 7843)]