21882424

素因数分解:

$2^3\times {\mathrm{97}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 41947920

約数和(自身を除く): 20065496

約数列:

[1, 2, 4, 8, 97, 163, 173, 194, 326, 346, 388, 652, 692, 776, 1304, 1384, 15811, 16781, 28199, 31622, 33562, 56398, 63244, 67124, 112796, 126488, 134248, 225592, 2735303, 5470606, 10941212, 21882424]

約数ペア:

[(1, 21882424), (2, 10941212), (4, 5470606), (8, 2735303), (97, 225592), (163, 134248), (173, 126488), (194, 112796), (326, 67124), (346, 63244), (388, 56398), (652, 33562), (692, 31622), (776, 28199), (1304, 16781), (1384, 15811)]