19920075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1997}}^1$

素因数の和:2036

約数の個数: 48

約数和(自身を含む): 39640320

約数和(自身を除く): 19720245

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, 1997, 3325, 5991, 9975, 9985, 13979, 29955, 37943, 41937, 49925, 69895, 113829, 149775, 189715, 209685, 265601, 349475, 569145, 796803, 948575, 1048425, 1328005, 2845725, 3984015, 6640025, 19920075]

約数ペア:

[(1, 19920075), (3, 6640025), (5, 3984015), (7, 2845725), (15, 1328005), (19, 1048425), (21, 948575), (25, 796803), (35, 569145), (57, 349475), (75, 265601), (95, 209685), (105, 189715), (133, 149775), (175, 113829), (285, 69895), (399, 49925), (475, 41937), (525, 37943), (665, 29955), (1425, 13979), (1995, 9985), (1997, 9975), (3325, 5991)]