21350225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{367}}^1$

素因数の和:569

約数の個数: 24

約数和(自身を含む): 28748160

約数和(自身を除く): 7397935

約数列:

[1, 5, 13, 25, 65, 179, 325, 367, 895, 1835, 2327, 4475, 4771, 9175, 11635, 23855, 58175, 65693, 119275, 328465, 854009, 1642325, 4270045, 21350225]

約数ペア:

[(1, 21350225), (5, 4270045), (13, 1642325), (25, 854009), (65, 328465), (179, 119275), (325, 65693), (367, 58175), (895, 23855), (1835, 11635), (2327, 9175), (4475, 4771)]