28391895

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{521}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 56676672

約数和(自身を除く): 28284777

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 173, 315, 519, 521, 865, 1211, 1557, 1563, 2595, 2605, 3633, 3647, 4689, 6055, 7785, 7815, 10899, 10941, 18165, 18235, 23445, 32823, 54495, 54705, 90133, 164115, 270399, 450665, 630931, 811197, 1351995, 1892793, 3154655, 4055985, 5678379, 9463965, 28391895]

約数ペア:

[(1, 28391895), (3, 9463965), (5, 5678379), (7, 4055985), (9, 3154655), (15, 1892793), (21, 1351995), (35, 811197), (45, 630931), (63, 450665), (105, 270399), (173, 164115), (315, 90133), (519, 54705), (521, 54495), (865, 32823), (1211, 23445), (1557, 18235), (1563, 18165), (2595, 10941), (2605, 10899), (3633, 7815), (3647, 7785), (4689, 6055)]