21222900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{23581}}^1$

素因数の和:23601

約数の個数: 54

約数和(自身を含む): 66524822

約数和(自身を除く): 45301922

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 23581, 47162, 70743, 94324, 117905, 141486, 212229, 235810, 282972, 353715, 424458, 471620, 589525, 707430, 848916, 1061145, 1179050, 1414860, 1768575, 2122290, 2358100, 3537150, 4244580, 5305725, 7074300, 10611450, 21222900]

約数ペア:

[(1, 21222900), (2, 10611450), (3, 7074300), (4, 5305725), (5, 4244580), (6, 3537150), (9, 2358100), (10, 2122290), (12, 1768575), (15, 1414860), (18, 1179050), (20, 1061145), (25, 848916), (30, 707430), (36, 589525), (45, 471620), (50, 424458), (60, 353715), (75, 282972), (90, 235810), (100, 212229), (150, 141486), (180, 117905), (225, 94324), (300, 70743), (450, 47162), (900, 23581)]