21999986

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{8641}}^1$

素因数の和:8729

約数の個数: 16

約数和(自身を含む): 35259360

約数和(自身を除く): 13259374

約数列:

[1, 2, 19, 38, 67, 134, 1273, 2546, 8641, 17282, 164179, 328358, 578947, 1157894, 10999993, 21999986]

約数ペア:

[(1, 21999986), (2, 10999993), (19, 1157894), (38, 578947), (67, 328358), (134, 164179), (1273, 17282), (2546, 8641)]