20723115

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8581}}^1$

素因数の和:8619

約数の個数: 32

約数和(自身を含む): 39545856

約数和(自身を除く): 18822741

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8581, 25743, 42905, 60067, 128715, 180201, 197363, 300335, 592089, 901005, 986815, 1381541, 2960445, 4144623, 6907705, 20723115]

約数ペア:

[(1, 20723115), (3, 6907705), (5, 4144623), (7, 2960445), (15, 1381541), (21, 986815), (23, 901005), (35, 592089), (69, 300335), (105, 197363), (115, 180201), (161, 128715), (345, 60067), (483, 42905), (805, 25743), (2415, 8581)]