21169762

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:418

約数の個数: 24

約数和(自身を含む): 33947100

約数和(自身を除く): 12777338

約数列:

[1, 2, 19, 38, 109, 218, 269, 361, 538, 722, 2071, 4142, 5111, 10222, 29321, 39349, 58642, 78698, 97109, 194218, 557099, 1114198, 10584881, 21169762]

約数ペア:

[(1, 21169762), (2, 10584881), (19, 1114198), (38, 557099), (109, 194218), (218, 97109), (269, 78698), (361, 58642), (538, 39349), (722, 29321), (2071, 10222), (4142, 5111)]