21931390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2311}}^1$

素因数の和:2404

約数の個数: 32

約数和(自身を含む): 43114176

約数和(自身を除く): 21182786

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 365, 730, 949, 1898, 2311, 4622, 4745, 9490, 11555, 23110, 30043, 60086, 150215, 168703, 300430, 337406, 843515, 1687030, 2193139, 4386278, 10965695, 21931390]

約数ペア:

[(1, 21931390), (2, 10965695), (5, 4386278), (10, 2193139), (13, 1687030), (26, 843515), (65, 337406), (73, 300430), (130, 168703), (146, 150215), (365, 60086), (730, 30043), (949, 23110), (1898, 11555), (2311, 9490), (4622, 4745)]