21565856

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1103}}^1$

素因数の和:1173

約数の個数: 48

約数和(自身を含む): 46738944

約数和(自身を除く): 25173088

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 47, 52, 94, 104, 188, 208, 376, 416, 611, 752, 1103, 1222, 1504, 2206, 2444, 4412, 4888, 8824, 9776, 14339, 17648, 19552, 28678, 35296, 51841, 57356, 103682, 114712, 207364, 229424, 414728, 458848, 673933, 829456, 1347866, 1658912, 2695732, 5391464, 10782928, 21565856]

約数ペア:

[(1, 21565856), (2, 10782928), (4, 5391464), (8, 2695732), (13, 1658912), (16, 1347866), (26, 829456), (32, 673933), (47, 458848), (52, 414728), (94, 229424), (104, 207364), (188, 114712), (208, 103682), (376, 57356), (416, 51841), (611, 35296), (752, 28678), (1103, 19552), (1222, 17648), (1504, 14339), (2206, 9776), (2444, 8824), (4412, 4888)]