21501214

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:400

約数の個数: 32

約数和(自身を含む): 37933056

約数和(自身を除く): 16431842

約数列:

[1, 2, 7, 14, 71, 97, 142, 194, 223, 446, 497, 679, 994, 1358, 1561, 3122, 6887, 13774, 15833, 21631, 31666, 43262, 48209, 96418, 110831, 151417, 221662, 302834, 1535801, 3071602, 10750607, 21501214]

約数ペア:

[(1, 21501214), (2, 10750607), (7, 3071602), (14, 1535801), (71, 302834), (97, 221662), (142, 151417), (194, 110831), (223, 96418), (446, 48209), (497, 43262), (679, 31666), (994, 21631), (1358, 15833), (1561, 13774), (3122, 6887)]