21364084

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{163}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 44670976

約数和(自身を除く): 23306892

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 151, 163, 217, 302, 326, 434, 604, 652, 868, 1057, 1141, 2114, 2282, 4228, 4564, 4681, 5053, 9362, 10106, 18724, 20212, 24613, 32767, 35371, 49226, 65534, 70742, 98452, 131068, 141484, 172291, 344582, 689164, 763003, 1526006, 3052012, 5341021, 10682042, 21364084]

約数ペア:

[(1, 21364084), (2, 10682042), (4, 5341021), (7, 3052012), (14, 1526006), (28, 763003), (31, 689164), (62, 344582), (124, 172291), (151, 141484), (163, 131068), (217, 98452), (302, 70742), (326, 65534), (434, 49226), (604, 35371), (652, 32767), (868, 24613), (1057, 20212), (1141, 18724), (2114, 10106), (2282, 9362), (4228, 5053), (4564, 4681)]