1213445891

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{2143}}^1\times {\mathrm{3517}}^1$

素因数の和:5690

約数の個数: 16

約数和(自身を含む): 1448177664

約数和(自身を除く): 234731773

約数列:

[1, 7, 23, 161, 2143, 3517, 15001, 24619, 49289, 80891, 345023, 566237, 7536931, 52758517, 173349413, 1213445891]

約数ペア:

[(1, 1213445891), (7, 173349413), (23, 52758517), (161, 7536931), (2143, 566237), (3517, 345023), (15001, 80891), (24619, 49289)]