20558895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8513}}^1$

素因数の和:8551

約数の個数: 32

約数和(自身を含む): 39232512

約数和(自身を除く): 18673617

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8513, 25539, 42565, 59591, 127695, 178773, 195799, 297955, 587397, 893865, 978995, 1370593, 2936985, 4111779, 6852965, 20558895]

約数ペア:

[(1, 20558895), (3, 6852965), (5, 4111779), (7, 2936985), (15, 1370593), (21, 978995), (23, 893865), (35, 587397), (69, 297955), (105, 195799), (115, 178773), (161, 127695), (345, 59591), (483, 42565), (805, 25539), (2415, 8513)]