21513772

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{45197}}^1$

素因数の和:45225

約数の個数: 24

約数和(自身を含む): 45559584

約数和(自身を除く): 24045812

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 45197, 90394, 180788, 316379, 632758, 768349, 1265516, 1536698, 3073396, 5378443, 10756886, 21513772]

約数ペア:

[(1, 21513772), (2, 10756886), (4, 5378443), (7, 3073396), (14, 1536698), (17, 1265516), (28, 768349), (34, 632758), (68, 316379), (119, 180788), (238, 90394), (476, 45197)]