21073552

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42487}}^1$

素因数の和:42526

約数の個数: 20

約数和(自身を含む): 42148096

約数和(自身を除く): 21074544

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42487, 84974, 169948, 339896, 679792, 1317097, 2634194, 5268388, 10536776, 21073552]

約数ペア:

[(1, 21073552), (2, 10536776), (4, 5268388), (8, 2634194), (16, 1317097), (31, 679792), (62, 339896), (124, 169948), (248, 84974), (496, 42487)]