21366195

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3643}}^1$

素因数の和:3691

約数の個数: 32

約数和(自身を含む): 37780992

約数和(自身を除く): 16414797

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 3643, 5865, 10929, 18215, 54645, 61931, 83789, 185793, 251367, 309655, 418945, 928965, 1256835, 1424413, 4273239, 7122065, 21366195]

約数ペア:

[(1, 21366195), (3, 7122065), (5, 4273239), (15, 1424413), (17, 1256835), (23, 928965), (51, 418945), (69, 309655), (85, 251367), (115, 185793), (255, 83789), (345, 61931), (391, 54645), (1173, 18215), (1955, 10929), (3643, 5865)]