21480426

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{691}}^1$

素因数の和:867

約数の個数: 48

約数和(自身を含む): 51169248

約数和(自身を除く): 29688822

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 157, 198, 314, 471, 691, 942, 1382, 1413, 1727, 2073, 2826, 3454, 4146, 5181, 6219, 7601, 10362, 12438, 15202, 15543, 22803, 31086, 45606, 68409, 108487, 136818, 216974, 325461, 650922, 976383, 1193357, 1952766, 2386714, 3580071, 7160142, 10740213, 21480426]

約数ペア:

[(1, 21480426), (2, 10740213), (3, 7160142), (6, 3580071), (9, 2386714), (11, 1952766), (18, 1193357), (22, 976383), (33, 650922), (66, 325461), (99, 216974), (157, 136818), (198, 108487), (314, 68409), (471, 45606), (691, 31086), (942, 22803), (1382, 15543), (1413, 15202), (1727, 12438), (2073, 10362), (2826, 7601), (3454, 6219), (4146, 5181)]