21742125

素因数分解:

$3^1\times 5^3\times {\mathrm{37}}^1\times {\mathrm{1567}}^1$

素因数の和:1622

約数の個数: 32

約数和(自身を含む): 37180416

約数和(自身を除く): 15438291

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 125, 185, 375, 555, 925, 1567, 2775, 4625, 4701, 7835, 13875, 23505, 39175, 57979, 117525, 173937, 195875, 289895, 587625, 869685, 1449475, 4348425, 7247375, 21742125]

約数ペア:

[(1, 21742125), (3, 7247375), (5, 4348425), (15, 1449475), (25, 869685), (37, 587625), (75, 289895), (111, 195875), (125, 173937), (185, 117525), (375, 57979), (555, 39175), (925, 23505), (1567, 13875), (2775, 7835), (4625, 4701)]