20393985

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59113}}^1$

素因数の和:59144

約数の個数: 16

約数和(自身を含む): 34049664

約数和(自身を除く): 13655679

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 59113, 177339, 295565, 886695, 1359599, 4078797, 6797995, 20393985]

約数ペア:

[(1, 20393985), (3, 6797995), (5, 4078797), (15, 1359599), (23, 886695), (69, 295565), (115, 177339), (345, 59113)]