21707488

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{743}}^1$

素因数の和:847

約数の個数: 48

約数和(自身を含む): 47246976

約数和(自身を除く): 25539488

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 83, 88, 166, 176, 332, 352, 664, 743, 913, 1328, 1486, 1826, 2656, 2972, 3652, 5944, 7304, 8173, 11888, 14608, 16346, 23776, 29216, 32692, 61669, 65384, 123338, 130768, 246676, 261536, 493352, 678359, 986704, 1356718, 1973408, 2713436, 5426872, 10853744, 21707488]

約数ペア:

[(1, 21707488), (2, 10853744), (4, 5426872), (8, 2713436), (11, 1973408), (16, 1356718), (22, 986704), (32, 678359), (44, 493352), (83, 261536), (88, 246676), (166, 130768), (176, 123338), (332, 65384), (352, 61669), (664, 32692), (743, 29216), (913, 23776), (1328, 16346), (1486, 14608), (1826, 11888), (2656, 8173), (2972, 7304), (3652, 5944)]