21728340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{120713}}^1$

素因数の和:120728

約数の個数: 36

約数和(自身を含む): 65909844

約数和(自身を除く): 44181504

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 120713, 241426, 362139, 482852, 603565, 724278, 1086417, 1207130, 1448556, 1810695, 2172834, 2414260, 3621390, 4345668, 5432085, 7242780, 10864170, 21728340]

約数ペア:

[(1, 21728340), (2, 10864170), (3, 7242780), (4, 5432085), (5, 4345668), (6, 3621390), (9, 2414260), (10, 2172834), (12, 1810695), (15, 1448556), (18, 1207130), (20, 1086417), (30, 724278), (36, 603565), (45, 482852), (60, 362139), (90, 241426), (180, 120713)]