19713729

素因数分解:

$3^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{2273}}^1$

素因数の和:2349

約数の個数: 24

約数和(自身を含む): 31108320

約数和(自身を除く): 11394591

約数列:

[1, 3, 7, 21, 49, 59, 147, 177, 413, 1239, 2273, 2891, 6819, 8673, 15911, 47733, 111377, 134107, 334131, 402321, 938749, 2816247, 6571243, 19713729]

約数ペア:

[(1, 19713729), (3, 6571243), (7, 2816247), (21, 938749), (49, 402321), (59, 334131), (147, 134107), (177, 111377), (413, 47733), (1239, 15911), (2273, 8673), (2891, 6819)]