21205998180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39270367}}^1$

素因数の和:39270385

約数の個数: 48

約数和(自身を含む): 65974218240

約数和(自身を除く): 44768220060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39270367, 78540734, 117811101, 157081468, 196351835, 235622202, 353433303, 392703670, 471244404, 589055505, 706866606, 785407340, 1060299909, 1178111010, 1413733212, 1767166515, 2120599818, 2356222020, 3534333030, 4241199636, 5301499545, 7068666060, 10602999090, 21205998180]

約数ペア:

[(1, 21205998180), (2, 10602999090), (3, 7068666060), (4, 5301499545), (5, 4241199636), (6, 3534333030), (9, 2356222020), (10, 2120599818), (12, 1767166515), (15, 1413733212), (18, 1178111010), (20, 1060299909), (27, 785407340), (30, 706866606), (36, 589055505), (45, 471244404), (54, 392703670), (60, 353433303), (90, 235622202), (108, 196351835), (135, 157081468), (180, 117811101), (270, 78540734), (540, 39270367)]