20215371

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{6883}}^1$

素因数の和:6986

約数の個数: 16

約数和(自身を含む): 29738880

約数和(自身を除く): 9523509

約数列:

[1, 3, 11, 33, 89, 267, 979, 2937, 6883, 20649, 75713, 227139, 612587, 1837761, 6738457, 20215371]

約数ペア:

[(1, 20215371), (3, 6738457), (11, 1837761), (33, 612587), (89, 227139), (267, 75713), (979, 20649), (2937, 6883)]