21025910

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{809}}^1$

素因数の和:952

約数の個数: 32

約数和(自身を含む): 39890880

約数和(自身を除く): 18864970

約数列:

[1, 2, 5, 10, 23, 46, 113, 115, 226, 230, 565, 809, 1130, 1618, 2599, 4045, 5198, 8090, 12995, 18607, 25990, 37214, 91417, 93035, 182834, 186070, 457085, 914170, 2102591, 4205182, 10512955, 21025910]

約数ペア:

[(1, 21025910), (2, 10512955), (5, 4205182), (10, 2102591), (23, 914170), (46, 457085), (113, 186070), (115, 182834), (226, 93035), (230, 91417), (565, 37214), (809, 25990), (1130, 18607), (1618, 12995), (2599, 8090), (4045, 5198)]