21637112

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 49144320

約数和(自身を除く): 27507208

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 107, 157, 161, 184, 214, 314, 322, 428, 628, 644, 749, 856, 1099, 1256, 1288, 1498, 2198, 2461, 2996, 3611, 4396, 4922, 5992, 7222, 8792, 9844, 14444, 16799, 17227, 19688, 25277, 28888, 33598, 34454, 50554, 67196, 68908, 101108, 117593, 134392, 137816, 202216, 235186, 386377, 470372, 772754, 940744, 1545508, 2704639, 3091016, 5409278, 10818556, 21637112]

約数ペア:

[(1, 21637112), (2, 10818556), (4, 5409278), (7, 3091016), (8, 2704639), (14, 1545508), (23, 940744), (28, 772754), (46, 470372), (56, 386377), (92, 235186), (107, 202216), (157, 137816), (161, 134392), (184, 117593), (214, 101108), (314, 68908), (322, 67196), (428, 50554), (628, 34454), (644, 33598), (749, 28888), (856, 25277), (1099, 19688), (1256, 17227), (1288, 16799), (1498, 14444), (2198, 9844), (2461, 8792), (2996, 7222), (3611, 5992), (4396, 4922)]