21393018

素因数分解:

$2^1\times 3^3\times {\mathrm{197}}^1\times {\mathrm{2011}}^1$

素因数の和:2219

約数の個数: 32

約数和(自身を含む): 47805120

約数和(自身を除く): 26412102

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 197, 394, 591, 1182, 1773, 2011, 3546, 4022, 5319, 6033, 10638, 12066, 18099, 36198, 54297, 108594, 396167, 792334, 1188501, 2377002, 3565503, 7131006, 10696509, 21393018]

約数ペア:

[(1, 21393018), (2, 10696509), (3, 7131006), (6, 3565503), (9, 2377002), (18, 1188501), (27, 792334), (54, 396167), (197, 108594), (394, 54297), (591, 36198), (1182, 18099), (1773, 12066), (2011, 10638), (3546, 6033), (4022, 5319)]