388987004

素因数分解:

$2^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{21673}}^1$

素因数の和:22325

約数の個数: 24

約数和(自身を含む): 779223648

約数和(自身を除く): 390236644

約数列:

[1, 2, 4, 7, 14, 28, 641, 1282, 2564, 4487, 8974, 17948, 21673, 43346, 86692, 151711, 303422, 606844, 13892393, 27784786, 55569572, 97246751, 194493502, 388987004]

約数ペア:

[(1, 388987004), (2, 194493502), (4, 97246751), (7, 55569572), (14, 27784786), (28, 13892393), (641, 606844), (1282, 303422), (2564, 151711), (4487, 86692), (8974, 43346), (17948, 21673)]