19900368

素因数分解:

$2^4\times 3^2\times {\mathrm{138197}}^1$

素因数の和:138211

約数の個数: 30

約数和(自身を含む): 55693794

約数和(自身を除く): 35793426

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 138197, 276394, 414591, 552788, 829182, 1105576, 1243773, 1658364, 2211152, 2487546, 3316728, 4975092, 6633456, 9950184, 19900368]

約数ペア:

[(1, 19900368), (2, 9950184), (3, 6633456), (4, 4975092), (6, 3316728), (8, 2487546), (9, 2211152), (12, 1658364), (16, 1243773), (18, 1105576), (24, 829182), (36, 552788), (48, 414591), (72, 276394), (144, 138197)]