20188641

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 31177728

約数和(自身を除く): 10989087

約数列:

[1, 3, 11, 23, 33, 67, 69, 201, 253, 397, 737, 759, 1191, 1541, 2211, 4367, 4623, 9131, 13101, 16951, 26599, 27393, 50853, 79797, 100441, 292589, 301323, 611777, 877767, 1835331, 6729547, 20188641]

約数ペア:

[(1, 20188641), (3, 6729547), (11, 1835331), (23, 877767), (33, 611777), (67, 301323), (69, 292589), (201, 100441), (253, 79797), (397, 50853), (737, 27393), (759, 26599), (1191, 16951), (1541, 13101), (2211, 9131), (4367, 4623)]