21250306

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{8117}}^1$

素因数の和:8154

約数の個数: 32

約数和(自身を含む): 42083712

約数和(自身を除く): 20833406

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 77, 119, 154, 187, 238, 374, 1309, 2618, 8117, 16234, 56819, 89287, 113638, 137989, 178574, 275978, 625009, 965923, 1250018, 1517879, 1931846, 3035758, 10625153, 21250306]

約数ペア:

[(1, 21250306), (2, 10625153), (7, 3035758), (11, 1931846), (14, 1517879), (17, 1250018), (22, 965923), (34, 625009), (77, 275978), (119, 178574), (154, 137989), (187, 113638), (238, 89287), (374, 56819), (1309, 16234), (2618, 8117)]