21288088

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1031}}^1$

素因数の和:1155

約数の個数: 32

約数和(自身を含む): 41796000

約数和(自身を除く): 20507912

約数列:

[1, 2, 4, 8, 29, 58, 89, 116, 178, 232, 356, 712, 1031, 2062, 2581, 4124, 5162, 8248, 10324, 20648, 29899, 59798, 91759, 119596, 183518, 239192, 367036, 734072, 2661011, 5322022, 10644044, 21288088]

約数ペア:

[(1, 21288088), (2, 10644044), (4, 5322022), (8, 2661011), (29, 734072), (58, 367036), (89, 239192), (116, 183518), (178, 119596), (232, 91759), (356, 59798), (712, 29899), (1031, 20648), (2062, 10324), (2581, 8248), (4124, 5162)]