21689437

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 29067264

約数和(自身を除く): 7377827

約数列:

[1, 7, 11, 23, 37, 77, 161, 253, 259, 331, 407, 851, 1771, 2317, 2849, 3641, 5957, 7613, 9361, 12247, 25487, 53291, 65527, 83743, 85729, 134717, 281681, 586201, 943019, 1971767, 3098491, 21689437]

約数ペア:

[(1, 21689437), (7, 3098491), (11, 1971767), (23, 943019), (37, 586201), (77, 281681), (161, 134717), (253, 85729), (259, 83743), (331, 65527), (407, 53291), (851, 25487), (1771, 12247), (2317, 9361), (2849, 7613), (3641, 5957)]