21309496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3359}}^1$

素因数の和:3439

約数の個数: 32

約数和(自身を含む): 43747200

約数和(自身を除く): 22437704

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 3359, 6344, 6718, 13436, 26872, 43667, 87334, 174668, 204899, 349336, 409798, 819596, 1639192, 2663687, 5327374, 10654748, 21309496]

約数ペア:

[(1, 21309496), (2, 10654748), (4, 5327374), (8, 2663687), (13, 1639192), (26, 819596), (52, 409798), (61, 349336), (104, 204899), (122, 174668), (244, 87334), (488, 43667), (793, 26872), (1586, 13436), (3172, 6718), (3359, 6344)]