21440097

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{797}}^1$

素因数の和:878

約数の個数: 36

約数和(自身を含む): 36661716

約数和(自身を除く): 15221619

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 427, 441, 549, 797, 1281, 2391, 2989, 3843, 5579, 7173, 8967, 16737, 26901, 39053, 48617, 50211, 117159, 145851, 340319, 351477, 437553, 1020957, 2382233, 3062871, 7146699, 21440097]

約数ペア:

[(1, 21440097), (3, 7146699), (7, 3062871), (9, 2382233), (21, 1020957), (49, 437553), (61, 351477), (63, 340319), (147, 145851), (183, 117159), (427, 50211), (441, 48617), (549, 39053), (797, 26901), (1281, 16737), (2391, 8967), (2989, 7173), (3843, 5579)]