21019890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{36877}}^1$

素因数の和:36906

約数の個数: 32

約数和(自身を含む): 53104320

約数和(自身を除く): 32084430

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 570, 36877, 73754, 110631, 184385, 221262, 368770, 553155, 700663, 1106310, 1401326, 2101989, 3503315, 4203978, 7006630, 10509945, 21019890]

約数ペア:

[(1, 21019890), (2, 10509945), (3, 7006630), (5, 4203978), (6, 3503315), (10, 2101989), (15, 1401326), (19, 1106310), (30, 700663), (38, 553155), (57, 368770), (95, 221262), (114, 184385), (190, 110631), (285, 73754), (570, 36877)]