21360591

素因数分解:

$3^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{373}}^1$

素因数の和:493

約数の個数: 40

約数和(自身を含む): 36927264

約数和(自身を除く): 15566673

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 101, 189, 303, 373, 567, 707, 909, 1119, 2121, 2611, 2727, 3357, 6363, 7833, 8181, 10071, 19089, 23499, 30213, 37673, 57267, 70497, 113019, 211491, 263711, 339057, 791133, 1017171, 2373399, 3051513, 7120197, 21360591]

約数ペア:

[(1, 21360591), (3, 7120197), (7, 3051513), (9, 2373399), (21, 1017171), (27, 791133), (63, 339057), (81, 263711), (101, 211491), (189, 113019), (303, 70497), (373, 57267), (567, 37673), (707, 30213), (909, 23499), (1119, 19089), (2121, 10071), (2611, 8181), (2727, 7833), (3357, 6363)]