213561908

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{1993}}^1$

素因数の和:2136

約数の個数: 48

約数和(自身を含む): 442189440

約数和(自身を除く): 228627532

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 89, 172, 178, 301, 356, 602, 623, 1204, 1246, 1993, 2492, 3827, 3986, 7654, 7972, 13951, 15308, 26789, 27902, 53578, 55804, 85699, 107156, 171398, 177377, 342796, 354754, 599893, 709508, 1199786, 1241639, 2399572, 2483278, 4966556, 7627211, 15254422, 30508844, 53390477, 106780954, 213561908]

約数ペア:

[(1, 213561908), (2, 106780954), (4, 53390477), (7, 30508844), (14, 15254422), (28, 7627211), (43, 4966556), (86, 2483278), (89, 2399572), (172, 1241639), (178, 1199786), (301, 709508), (356, 599893), (602, 354754), (623, 342796), (1204, 177377), (1246, 171398), (1993, 107156), (2492, 85699), (3827, 55804), (3986, 53578), (7654, 27902), (7972, 26789), (13951, 15308)]