19724852

素因数分解:

$2^2\times 7^2\times {\mathrm{157}}^1\times {\mathrm{641}}^1$

素因数の和:816

約数の個数: 36

約数和(自身を含む): 40472964

約数和(自身を除く): 20748112

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 157, 196, 314, 628, 641, 1099, 1282, 2198, 2564, 4396, 4487, 7693, 8974, 15386, 17948, 30772, 31409, 62818, 100637, 125636, 201274, 402548, 704459, 1408918, 2817836, 4931213, 9862426, 19724852]

約数ペア:

[(1, 19724852), (2, 9862426), (4, 4931213), (7, 2817836), (14, 1408918), (28, 704459), (49, 402548), (98, 201274), (157, 125636), (196, 100637), (314, 62818), (628, 31409), (641, 30772), (1099, 17948), (1282, 15386), (2198, 8974), (2564, 7693), (4396, 4487)]