21286610

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 39441600

約数和(自身を除く): 18154990

約数列:

[1, 2, 5, 10, 59, 109, 118, 218, 295, 331, 545, 590, 662, 1090, 1655, 3310, 6431, 12862, 19529, 32155, 36079, 39058, 64310, 72158, 97645, 180395, 195290, 360790, 2128661, 4257322, 10643305, 21286610]

約数ペア:

[(1, 21286610), (2, 10643305), (5, 4257322), (10, 2128661), (59, 360790), (109, 195290), (118, 180395), (218, 97645), (295, 72158), (331, 64310), (545, 39058), (590, 36079), (662, 32155), (1090, 19529), (1655, 12862), (3310, 6431)]