1223355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 2285568

約数和(自身を除く): 1062213

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 191, 305, 427, 573, 915, 955, 1281, 1337, 2135, 2865, 4011, 6405, 6685, 11651, 20055, 34953, 58255, 81557, 174765, 244671, 407785, 1223355]

約数ペア:

[(1, 1223355), (3, 407785), (5, 244671), (7, 174765), (15, 81557), (21, 58255), (35, 34953), (61, 20055), (105, 11651), (183, 6685), (191, 6405), (305, 4011), (427, 2865), (573, 2135), (915, 1337), (955, 1281)]