21391932

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{433}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 52496640

約数和(自身を除く): 31104708

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 179, 276, 358, 433, 537, 716, 866, 1074, 1299, 1732, 2148, 2598, 4117, 5196, 8234, 9959, 12351, 16468, 19918, 24702, 29877, 39836, 49404, 59754, 77507, 119508, 155014, 232521, 310028, 465042, 930084, 1782661, 3565322, 5347983, 7130644, 10695966, 21391932]

約数ペア:

[(1, 21391932), (2, 10695966), (3, 7130644), (4, 5347983), (6, 3565322), (12, 1782661), (23, 930084), (46, 465042), (69, 310028), (92, 232521), (138, 155014), (179, 119508), (276, 77507), (358, 59754), (433, 49404), (537, 39836), (716, 29877), (866, 24702), (1074, 19918), (1299, 16468), (1732, 12351), (2148, 9959), (2598, 8234), (4117, 5196)]