20219325

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2027}}^1$

素因数の和:2066

約数の個数: 48

約数和(自身を含む): 40235520

約数和(自身を除く): 20016195

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 133, 175, 285, 399, 475, 525, 665, 1425, 1995, 2027, 3325, 6081, 9975, 10135, 14189, 30405, 38513, 42567, 50675, 70945, 115539, 152025, 192565, 212835, 269591, 354725, 577695, 808773, 962825, 1064175, 1347955, 2888475, 4043865, 6739775, 20219325]

約数ペア:

[(1, 20219325), (3, 6739775), (5, 4043865), (7, 2888475), (15, 1347955), (19, 1064175), (21, 962825), (25, 808773), (35, 577695), (57, 354725), (75, 269591), (95, 212835), (105, 192565), (133, 152025), (175, 115539), (285, 70945), (399, 50675), (475, 42567), (525, 38513), (665, 30405), (1425, 14189), (1995, 10135), (2027, 9975), (3325, 6081)]