21204108

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{15919}}^1$

素因数の和:15966

約数の個数: 36

約数和(自身を含む): 55051360

約数和(自身を除く): 33847252

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 666, 1332, 15919, 31838, 47757, 63676, 95514, 143271, 191028, 286542, 573084, 589003, 1178006, 1767009, 2356012, 3534018, 5301027, 7068036, 10602054, 21204108]

約数ペア:

[(1, 21204108), (2, 10602054), (3, 7068036), (4, 5301027), (6, 3534018), (9, 2356012), (12, 1767009), (18, 1178006), (36, 589003), (37, 573084), (74, 286542), (111, 191028), (148, 143271), (222, 95514), (333, 63676), (444, 47757), (666, 31838), (1332, 15919)]