21655854

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:254

約数の個数: 72

約数和(自身を含む): 52741416

約数和(自身を除く): 31085562

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 61, 66, 99, 121, 122, 163, 183, 198, 242, 326, 363, 366, 489, 549, 671, 726, 978, 1089, 1098, 1342, 1467, 1793, 2013, 2178, 2934, 3586, 4026, 5379, 6039, 7381, 9943, 10758, 12078, 14762, 16137, 19723, 19886, 22143, 29829, 32274, 39446, 44286, 59169, 59658, 66429, 89487, 109373, 118338, 132858, 177507, 178974, 218746, 328119, 355014, 656238, 984357, 1203103, 1968714, 2406206, 3609309, 7218618, 10827927, 21655854]

約数ペア:

[(1, 21655854), (2, 10827927), (3, 7218618), (6, 3609309), (9, 2406206), (11, 1968714), (18, 1203103), (22, 984357), (33, 656238), (61, 355014), (66, 328119), (99, 218746), (121, 178974), (122, 177507), (163, 132858), (183, 118338), (198, 109373), (242, 89487), (326, 66429), (363, 59658), (366, 59169), (489, 44286), (549, 39446), (671, 32274), (726, 29829), (978, 22143), (1089, 19886), (1098, 19723), (1342, 16137), (1467, 14762), (1793, 12078), (2013, 10758), (2178, 9943), (2934, 7381), (3586, 6039), (4026, 5379)]