20722248

素因数分解:

$2^3\times 3^2\times {\mathrm{449}}^1\times {\mathrm{641}}^1$

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 56335500

約数和(自身を除く): 35613252

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 449, 641, 898, 1282, 1347, 1796, 1923, 2564, 2694, 3592, 3846, 4041, 5128, 5388, 5769, 7692, 8082, 10776, 11538, 15384, 16164, 23076, 32328, 46152, 287809, 575618, 863427, 1151236, 1726854, 2302472, 2590281, 3453708, 5180562, 6907416, 10361124, 20722248]

約数ペア:

[(1, 20722248), (2, 10361124), (3, 6907416), (4, 5180562), (6, 3453708), (8, 2590281), (9, 2302472), (12, 1726854), (18, 1151236), (24, 863427), (36, 575618), (72, 287809), (449, 46152), (641, 32328), (898, 23076), (1282, 16164), (1347, 15384), (1796, 11538), (1923, 10776), (2564, 8082), (2694, 7692), (3592, 5769), (3846, 5388), (4041, 5128)]