21389770

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{823}}^1$

素因数の和:966

約数の個数: 32

約数和(自身を含む): 40580352

約数和(自身を除く): 19190582

約数列:

[1, 2, 5, 10, 23, 46, 113, 115, 226, 230, 565, 823, 1130, 1646, 2599, 4115, 5198, 8230, 12995, 18929, 25990, 37858, 92999, 94645, 185998, 189290, 464995, 929990, 2138977, 4277954, 10694885, 21389770]

約数ペア:

[(1, 21389770), (2, 10694885), (5, 4277954), (10, 2138977), (23, 929990), (46, 464995), (113, 189290), (115, 185998), (226, 94645), (230, 92999), (565, 37858), (823, 25990), (1130, 18929), (1646, 12995), (2599, 8230), (4115, 5198)]