21987122

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{67}}^2\times {\mathrm{79}}^1$

素因数の和:246

約数の個数: 24

約数和(自身を含む): 34997760

約数和(自身を除く): 13010638

約数列:

[1, 2, 31, 62, 67, 79, 134, 158, 2077, 2449, 4154, 4489, 4898, 5293, 8978, 10586, 139159, 164083, 278318, 328166, 354631, 709262, 10993561, 21987122]

約数ペア:

[(1, 21987122), (2, 10993561), (31, 709262), (62, 354631), (67, 328166), (79, 278318), (134, 164083), (158, 139159), (2077, 10586), (2449, 8978), (4154, 5293), (4489, 4898)]