20955255

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{719}}^1$

素因数の和:823

約数の個数: 32

約数和(自身を含む): 35251200

約数和(自身を除く): 14295945

約数列:

[1, 3, 5, 15, 29, 67, 87, 145, 201, 335, 435, 719, 1005, 1943, 2157, 3595, 5829, 9715, 10785, 20851, 29145, 48173, 62553, 104255, 144519, 240865, 312765, 722595, 1397017, 4191051, 6985085, 20955255]

約数ペア:

[(1, 20955255), (3, 6985085), (5, 4191051), (15, 1397017), (29, 722595), (67, 312765), (87, 240865), (145, 144519), (201, 104255), (335, 62553), (435, 48173), (719, 29145), (1005, 20851), (1943, 10785), (2157, 9715), (3595, 5829)]