28077987

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 44029440

約数和(自身を除く): 15951453

約数列:

[1, 3, 7, 21, 83, 89, 181, 249, 267, 543, 581, 623, 1267, 1743, 1869, 3801, 7387, 15023, 16109, 22161, 45069, 48327, 51709, 105161, 112763, 155127, 315483, 338289, 1337047, 4011141, 9359329, 28077987]

約数ペア:

[(1, 28077987), (3, 9359329), (7, 4011141), (21, 1337047), (83, 338289), (89, 315483), (181, 155127), (249, 112763), (267, 105161), (543, 51709), (581, 48327), (623, 45069), (1267, 22161), (1743, 16109), (1869, 15023), (3801, 7387)]