19955664

素因数分解:

$2^4\times 3^2\times {\mathrm{138581}}^1$

素因数の和:138595

約数の個数: 30

約数和(自身を含む): 55848546

約数和(自身を除く): 35892882

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 138581, 277162, 415743, 554324, 831486, 1108648, 1247229, 1662972, 2217296, 2494458, 3325944, 4988916, 6651888, 9977832, 19955664]

約数ペア:

[(1, 19955664), (2, 9977832), (3, 6651888), (4, 4988916), (6, 3325944), (8, 2494458), (9, 2217296), (12, 1662972), (16, 1247229), (18, 1108648), (24, 831486), (36, 554324), (48, 415743), (72, 277162), (144, 138581)]