21094275

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 37319040

約数和(自身を除く): 16224765

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 113, 131, 285, 339, 393, 475, 565, 655, 1425, 1695, 1965, 2147, 2489, 2825, 3275, 6441, 7467, 8475, 9825, 10735, 12445, 14803, 32205, 37335, 44409, 53675, 62225, 74015, 161025, 186675, 222045, 281257, 370075, 843771, 1110225, 1406285, 4218855, 7031425, 21094275]

約数ペア:

[(1, 21094275), (3, 7031425), (5, 4218855), (15, 1406285), (19, 1110225), (25, 843771), (57, 370075), (75, 281257), (95, 222045), (113, 186675), (131, 161025), (285, 74015), (339, 62225), (393, 53675), (475, 44409), (565, 37335), (655, 32205), (1425, 14803), (1695, 12445), (1965, 10735), (2147, 9825), (2489, 8475), (2825, 7467), (3275, 6441)]