16619475

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 29007072

約数和(自身を除く): 12387597

約数列:

[1, 3, 5, 15, 25, 37, 53, 75, 111, 113, 159, 185, 265, 339, 555, 565, 795, 925, 1325, 1695, 1961, 2775, 2825, 3975, 4181, 5883, 5989, 8475, 9805, 12543, 17967, 20905, 29415, 29945, 49025, 62715, 89835, 104525, 147075, 149725, 221593, 313575, 449175, 664779, 1107965, 3323895, 5539825, 16619475]

約数ペア:

[(1, 16619475), (3, 5539825), (5, 3323895), (15, 1107965), (25, 664779), (37, 449175), (53, 313575), (75, 221593), (111, 149725), (113, 147075), (159, 104525), (185, 89835), (265, 62715), (339, 49025), (555, 29945), (565, 29415), (795, 20905), (925, 17967), (1325, 12543), (1695, 9805), (1961, 8475), (2775, 5989), (2825, 5883), (3975, 4181)]