21893360

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1297}}^1$

素因数の和:1521

約数の個数: 40

約数和(自身を含む): 51182736

約数和(自身を除く): 29289376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1297, 1688, 2110, 2594, 3376, 4220, 5188, 6485, 8440, 10376, 12970, 16880, 20752, 25940, 51880, 103760, 273667, 547334, 1094668, 1368335, 2189336, 2736670, 4378672, 5473340, 10946680, 21893360]

約数ペア:

[(1, 21893360), (2, 10946680), (4, 5473340), (5, 4378672), (8, 2736670), (10, 2189336), (16, 1368335), (20, 1094668), (40, 547334), (80, 273667), (211, 103760), (422, 51880), (844, 25940), (1055, 20752), (1297, 16880), (1688, 12970), (2110, 10376), (2594, 8440), (3376, 6485), (4220, 5188)]