21472615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 29237760

約数和(自身を除く): 7765145

約数列:

[1, 5, 17, 29, 31, 85, 145, 155, 281, 493, 527, 899, 1405, 2465, 2635, 4495, 4777, 8149, 8711, 15283, 23885, 40745, 43555, 76415, 138533, 148087, 252619, 692665, 740435, 1263095, 4294523, 21472615]

約数ペア:

[(1, 21472615), (5, 4294523), (17, 1263095), (29, 740435), (31, 692665), (85, 252619), (145, 148087), (155, 138533), (281, 76415), (493, 43555), (527, 40745), (899, 23885), (1405, 15283), (2465, 8711), (2635, 8149), (4495, 4777)]