21409948

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9679}}^1$

素因数の和:9769

約数の個数: 24

約数和(自身を含む): 43366400

約数和(自身を除く): 21956452

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9679, 19358, 38716, 67753, 135506, 271012, 764641, 1529282, 3058564, 5352487, 10704974, 21409948]

約数ペア:

[(1, 21409948), (2, 10704974), (4, 5352487), (7, 3058564), (14, 1529282), (28, 764641), (79, 271012), (158, 135506), (316, 67753), (553, 38716), (1106, 19358), (2212, 9679)]