21318886

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:300

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 13517594

約数列:

[1, 2, 29, 31, 58, 62, 71, 142, 167, 334, 899, 1798, 2059, 2201, 4118, 4402, 4843, 5177, 9686, 10354, 11857, 23714, 63829, 127658, 150133, 300266, 343853, 367567, 687706, 735134, 10659443, 21318886]

約数ペア:

[(1, 21318886), (2, 10659443), (29, 735134), (31, 687706), (58, 367567), (62, 343853), (71, 300266), (142, 150133), (167, 127658), (334, 63829), (899, 23714), (1798, 11857), (2059, 10354), (2201, 9686), (4118, 5177), (4402, 4843)]