211651105

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1709}}^1$

素因数の和:1809

約数の個数: 32

約数和(自身を含む): 283668480

約数和(自身を除く): 72017375

約数列:

[1, 5, 17, 31, 47, 85, 155, 235, 527, 799, 1457, 1709, 2635, 3995, 7285, 8545, 24769, 29053, 52979, 80323, 123845, 145265, 264895, 401615, 900643, 1365491, 2490013, 4503215, 6827455, 12450065, 42330221, 211651105]

約数ペア:

[(1, 211651105), (5, 42330221), (17, 12450065), (31, 6827455), (47, 4503215), (85, 2490013), (155, 1365491), (235, 900643), (527, 401615), (799, 264895), (1457, 145265), (1709, 123845), (2635, 80323), (3995, 52979), (7285, 29053), (8545, 24769)]