16821075

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 29998080

約数和(自身を除く): 13177005

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 79, 85, 167, 237, 255, 395, 425, 501, 835, 1185, 1275, 1343, 1975, 2505, 2839, 4029, 4175, 5925, 6715, 8517, 12525, 13193, 14195, 20145, 33575, 39579, 42585, 65965, 70975, 100725, 197895, 212925, 224281, 329825, 672843, 989475, 1121405, 3364215, 5607025, 16821075]

約数ペア:

[(1, 16821075), (3, 5607025), (5, 3364215), (15, 1121405), (17, 989475), (25, 672843), (51, 329825), (75, 224281), (79, 212925), (85, 197895), (167, 100725), (237, 70975), (255, 65965), (395, 42585), (425, 39579), (501, 33575), (835, 20145), (1185, 14195), (1275, 13193), (1343, 12525), (1975, 8517), (2505, 6715), (2839, 5925), (4029, 4175)]