21495800

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{4673}}^1$

素因数の和:4712

約数の個数: 48

約数和(自身を含む): 52161840

約数和(自身を除く): 30666040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 184, 200, 230, 460, 575, 920, 1150, 2300, 4600, 4673, 9346, 18692, 23365, 37384, 46730, 93460, 107479, 116825, 186920, 214958, 233650, 429916, 467300, 537395, 859832, 934600, 1074790, 2149580, 2686975, 4299160, 5373950, 10747900, 21495800]

約数ペア:

[(1, 21495800), (2, 10747900), (4, 5373950), (5, 4299160), (8, 2686975), (10, 2149580), (20, 1074790), (23, 934600), (25, 859832), (40, 537395), (46, 467300), (50, 429916), (92, 233650), (100, 214958), (115, 186920), (184, 116825), (200, 107479), (230, 93460), (460, 46730), (575, 37384), (920, 23365), (1150, 18692), (2300, 9346), (4600, 4673)]