21786310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 27202490

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 89, 91, 130, 178, 182, 269, 445, 455, 538, 623, 890, 910, 1157, 1246, 1345, 1883, 2314, 2690, 3115, 3497, 3766, 5785, 6230, 6994, 8099, 9415, 11570, 16198, 17485, 18830, 23941, 24479, 34970, 40495, 47882, 48958, 80990, 119705, 122395, 167587, 239410, 244790, 311233, 335174, 622466, 837935, 1556165, 1675870, 2178631, 3112330, 4357262, 10893155, 21786310]

約数ペア:

[(1, 21786310), (2, 10893155), (5, 4357262), (7, 3112330), (10, 2178631), (13, 1675870), (14, 1556165), (26, 837935), (35, 622466), (65, 335174), (70, 311233), (89, 244790), (91, 239410), (130, 167587), (178, 122395), (182, 119705), (269, 80990), (445, 48958), (455, 47882), (538, 40495), (623, 34970), (890, 24479), (910, 23941), (1157, 18830), (1246, 17485), (1345, 16198), (1883, 11570), (2314, 9415), (2690, 8099), (3115, 6994), (3497, 6230), (3766, 5785)]