21623337

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 35223552

約数和(自身を除く): 13600215

約数列:

[1, 3, 9, 17, 31, 47, 51, 93, 97, 141, 153, 279, 291, 423, 527, 799, 873, 1457, 1581, 1649, 2397, 3007, 4371, 4559, 4743, 4947, 7191, 9021, 13113, 13677, 14841, 24769, 27063, 41031, 51119, 74307, 77503, 141329, 153357, 222921, 232509, 423987, 460071, 697527, 1271961, 2402593, 7207779, 21623337]

約数ペア:

[(1, 21623337), (3, 7207779), (9, 2402593), (17, 1271961), (31, 697527), (47, 460071), (51, 423987), (93, 232509), (97, 222921), (141, 153357), (153, 141329), (279, 77503), (291, 74307), (423, 51119), (527, 41031), (799, 27063), (873, 24769), (1457, 14841), (1581, 13677), (1649, 13113), (2397, 9021), (3007, 7191), (4371, 4947), (4559, 4743)]