21241376

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{51061}}^1$

素因数の和:51084

約数の個数: 24

約数和(自身を含む): 45036684

約数和(自身を除く): 23795308

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 51061, 102122, 204244, 408488, 663793, 816976, 1327586, 1633952, 2655172, 5310344, 10620688, 21241376]

約数ペア:

[(1, 21241376), (2, 10620688), (4, 5310344), (8, 2655172), (13, 1633952), (16, 1327586), (26, 816976), (32, 663793), (52, 408488), (104, 204244), (208, 102122), (416, 51061)]