20779948

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{787}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 44481024

約数和(自身を除く): 23701076

約数列:

[1, 2, 4, 7, 14, 23, 28, 41, 46, 82, 92, 161, 164, 287, 322, 574, 644, 787, 943, 1148, 1574, 1886, 3148, 3772, 5509, 6601, 11018, 13202, 18101, 22036, 26404, 32267, 36202, 64534, 72404, 126707, 129068, 225869, 253414, 451738, 506828, 742141, 903476, 1484282, 2968564, 5194987, 10389974, 20779948]

約数ペア:

[(1, 20779948), (2, 10389974), (4, 5194987), (7, 2968564), (14, 1484282), (23, 903476), (28, 742141), (41, 506828), (46, 451738), (82, 253414), (92, 225869), (161, 129068), (164, 126707), (287, 72404), (322, 64534), (574, 36202), (644, 32267), (787, 26404), (943, 22036), (1148, 18101), (1574, 13202), (1886, 11018), (3148, 6601), (3772, 5509)]