21031849405

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{842791}}^1$

素因数の和:842857

約数の個数: 32

約数和(自身を含む): 31068684288

約数和(自身を除く): 10036834883

約数列:

[1, 5, 7, 23, 31, 35, 115, 155, 161, 217, 713, 805, 1085, 3565, 4991, 24955, 842791, 4213955, 5899537, 19384193, 26126521, 29497685, 96920965, 130632605, 135689351, 182885647, 600909983, 678446755, 914428235, 3004549915, 4206369881, 21031849405]

約数ペア:

[(1, 21031849405), (5, 4206369881), (7, 3004549915), (23, 914428235), (31, 678446755), (35, 600909983), (115, 182885647), (155, 135689351), (161, 130632605), (217, 96920965), (713, 29497685), (805, 26126521), (1085, 19384193), (3565, 5899537), (4991, 4213955), (24955, 842791)]