21871394

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 14416606

約数列:

[1, 2, 19, 29, 38, 58, 89, 178, 223, 446, 551, 1102, 1691, 2581, 3382, 4237, 5162, 6467, 8474, 12934, 19847, 39694, 49039, 98078, 122873, 245746, 377093, 575563, 754186, 1151126, 10935697, 21871394]

約数ペア:

[(1, 21871394), (2, 10935697), (19, 1151126), (29, 754186), (38, 575563), (58, 377093), (89, 245746), (178, 122873), (223, 98078), (446, 49039), (551, 39694), (1102, 19847), (1691, 12934), (2581, 8474), (3382, 6467), (4237, 5162)]