21197375

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:212

約数の個数: 32

約数和(自身を含む): 28259712

約数和(自身を除く): 7062337

約数列:

[1, 5, 23, 25, 73, 101, 115, 125, 365, 505, 575, 1679, 1825, 2323, 2525, 2875, 7373, 8395, 9125, 11615, 12625, 36865, 41975, 58075, 169579, 184325, 209875, 290375, 847895, 921625, 4239475, 21197375]

約数ペア:

[(1, 21197375), (5, 4239475), (23, 921625), (25, 847895), (73, 290375), (101, 209875), (115, 184325), (125, 169579), (365, 58075), (505, 41975), (575, 36865), (1679, 12625), (1825, 11615), (2323, 9125), (2525, 8395), (2875, 7373)]