21691712

素因数分解:

$2^6\times 7^2\times {\mathrm{6917}}^1$

素因数の和:6943

約数の個数: 42

約数和(自身を含む): 50079402

約数和(自身を除く): 28387690

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6917, 13834, 27668, 48419, 55336, 96838, 110672, 193676, 221344, 338933, 387352, 442688, 677866, 774704, 1355732, 1549408, 2711464, 3098816, 5422928, 10845856, 21691712]

約数ペア:

[(1, 21691712), (2, 10845856), (4, 5422928), (7, 3098816), (8, 2711464), (14, 1549408), (16, 1355732), (28, 774704), (32, 677866), (49, 442688), (56, 387352), (64, 338933), (98, 221344), (112, 193676), (196, 110672), (224, 96838), (392, 55336), (448, 48419), (784, 27668), (1568, 13834), (3136, 6917)]