21215104

素因数分解:

$2^7\times {\mathrm{107}}^1\times {\mathrm{1549}}^1$

素因数の和:1670

約数の個数: 32

約数和(自身を含む): 42687000

約数和(自身を除く): 21471896

約数列:

[1, 2, 4, 8, 16, 32, 64, 107, 128, 214, 428, 856, 1549, 1712, 3098, 3424, 6196, 6848, 12392, 13696, 24784, 49568, 99136, 165743, 198272, 331486, 662972, 1325944, 2651888, 5303776, 10607552, 21215104]

約数ペア:

[(1, 21215104), (2, 10607552), (4, 5303776), (8, 2651888), (16, 1325944), (32, 662972), (64, 331486), (107, 198272), (128, 165743), (214, 99136), (428, 49568), (856, 24784), (1549, 13696), (1712, 12392), (3098, 6848), (3424, 6196)]