31997301

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2137}}^1$

素因数の和:2201

約数の個数: 32

約数和(自身を含む): 52543488

約数和(自身を除く): 20546187

約数列:

[1, 3, 7, 21, 23, 31, 69, 93, 161, 217, 483, 651, 713, 2137, 2139, 4991, 6411, 14959, 14973, 44877, 49151, 66247, 147453, 198741, 344057, 463729, 1032171, 1391187, 1523681, 4571043, 10665767, 31997301]

約数ペア:

[(1, 31997301), (3, 10665767), (7, 4571043), (21, 1523681), (23, 1391187), (31, 1032171), (69, 463729), (93, 344057), (161, 198741), (217, 147453), (483, 66247), (651, 49151), (713, 44877), (2137, 14973), (2139, 14959), (4991, 6411)]