20877825

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^2\times {\mathrm{331}}^1$

素因数の和:402

約数の個数: 36

約数和(自身を含む): 35857328

約数和(自身を除く): 14979503

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 331, 435, 725, 841, 993, 1655, 2175, 2523, 4205, 4965, 8275, 9599, 12615, 21025, 24825, 28797, 47995, 63075, 143985, 239975, 278371, 719925, 835113, 1391855, 4175565, 6959275, 20877825]

約数ペア:

[(1, 20877825), (3, 6959275), (5, 4175565), (15, 1391855), (25, 835113), (29, 719925), (75, 278371), (87, 239975), (145, 143985), (331, 63075), (435, 47995), (725, 28797), (841, 24825), (993, 21025), (1655, 12615), (2175, 9599), (2523, 8275), (4205, 4965)]