21885535

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{877}}^1$

素因数の和:943

約数の個数: 32

約数和(自身を含む): 32366592

約数和(自身を除く): 10481057

約数列:

[1, 5, 7, 23, 31, 35, 115, 155, 161, 217, 713, 805, 877, 1085, 3565, 4385, 4991, 6139, 20171, 24955, 27187, 30695, 100855, 135935, 141197, 190309, 625301, 705985, 951545, 3126505, 4377107, 21885535]

約数ペア:

[(1, 21885535), (5, 4377107), (7, 3126505), (23, 951545), (31, 705985), (35, 625301), (115, 190309), (155, 141197), (161, 135935), (217, 100855), (713, 30695), (805, 27187), (877, 24955), (1085, 20171), (3565, 6139), (4385, 4991)]