21176038

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:149

約数の個数: 48

約数和(自身を含む): 37103616

約数和(自身を除く): 15927578

約数列:

[1, 2, 13, 26, 31, 43, 47, 62, 86, 94, 169, 338, 403, 559, 611, 806, 1118, 1222, 1333, 1457, 2021, 2666, 2914, 4042, 5239, 7267, 7943, 10478, 14534, 15886, 17329, 18941, 26273, 34658, 37882, 52546, 62651, 125302, 225277, 246233, 341549, 450554, 492466, 683098, 814463, 1628926, 10588019, 21176038]

約数ペア:

[(1, 21176038), (2, 10588019), (13, 1628926), (26, 814463), (31, 683098), (43, 492466), (47, 450554), (62, 341549), (86, 246233), (94, 225277), (169, 125302), (338, 62651), (403, 52546), (559, 37882), (611, 34658), (806, 26273), (1118, 18941), (1222, 17329), (1333, 15886), (1457, 14534), (2021, 10478), (2666, 7943), (2914, 7267), (4042, 5239)]