21191088

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{10267}}^1$

素因数の和:10321

約数の個数: 40

約数和(自身を含む): 56022208

約数和(自身を除く): 34831120

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 86, 129, 172, 258, 344, 516, 688, 1032, 2064, 10267, 20534, 30801, 41068, 61602, 82136, 123204, 164272, 246408, 441481, 492816, 882962, 1324443, 1765924, 2648886, 3531848, 5297772, 7063696, 10595544, 21191088]

約数ペア:

[(1, 21191088), (2, 10595544), (3, 7063696), (4, 5297772), (6, 3531848), (8, 2648886), (12, 1765924), (16, 1324443), (24, 882962), (43, 492816), (48, 441481), (86, 246408), (129, 164272), (172, 123204), (258, 82136), (344, 61602), (516, 41068), (688, 30801), (1032, 20534), (2064, 10267)]