21612976

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:410

約数の個数: 80

約数和(自身を含む): 53353728

約数和(自身を除く): 31740752

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 53, 56, 77, 88, 106, 112, 154, 176, 212, 308, 331, 371, 424, 583, 616, 662, 742, 848, 1166, 1232, 1324, 1484, 2317, 2332, 2648, 2968, 3641, 4081, 4634, 4664, 5296, 5936, 7282, 8162, 9268, 9328, 14564, 16324, 17543, 18536, 25487, 29128, 32648, 35086, 37072, 50974, 58256, 65296, 70172, 101948, 122801, 140344, 192973, 203896, 245602, 280688, 385946, 407792, 491204, 771892, 982408, 1350811, 1543784, 1964816, 2701622, 3087568, 5403244, 10806488, 21612976]

約数ペア:

[(1, 21612976), (2, 10806488), (4, 5403244), (7, 3087568), (8, 2701622), (11, 1964816), (14, 1543784), (16, 1350811), (22, 982408), (28, 771892), (44, 491204), (53, 407792), (56, 385946), (77, 280688), (88, 245602), (106, 203896), (112, 192973), (154, 140344), (176, 122801), (212, 101948), (308, 70172), (331, 65296), (371, 58256), (424, 50974), (583, 37072), (616, 35086), (662, 32648), (742, 29128), (848, 25487), (1166, 18536), (1232, 17543), (1324, 16324), (1484, 14564), (2317, 9328), (2332, 9268), (2648, 8162), (2968, 7282), (3641, 5936), (4081, 5296), (4634, 4664)]