21827565

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15647}}^1$

素因数の和:15689

約数の個数: 24

約数和(自身を含む): 39057408

約数和(自身を除く): 17229843

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 15647, 46941, 78235, 140823, 234705, 485057, 704115, 1455171, 2425285, 4365513, 7275855, 21827565]

約数ペア:

[(1, 21827565), (3, 7275855), (5, 4365513), (9, 2425285), (15, 1455171), (31, 704115), (45, 485057), (93, 234705), (155, 140823), (279, 78235), (465, 46941), (1395, 15647)]