21741195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2621}}^1$

素因数の和:2715

約数の個数: 32

約数和(自身を含む): 40273920

約数和(自身を除く): 18532725

約数列:

[1, 3, 5, 7, 15, 21, 35, 79, 105, 237, 395, 553, 1185, 1659, 2621, 2765, 7863, 8295, 13105, 18347, 39315, 55041, 91735, 207059, 275205, 621177, 1035295, 1449413, 3105885, 4348239, 7247065, 21741195]

約数ペア:

[(1, 21741195), (3, 7247065), (5, 4348239), (7, 3105885), (15, 1449413), (21, 1035295), (35, 621177), (79, 275205), (105, 207059), (237, 91735), (395, 55041), (553, 39315), (1185, 18347), (1659, 13105), (2621, 8295), (2765, 7863)]