20353215

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{659}}^1$

素因数の和:767

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 13861185

約数列:

[1, 3, 5, 15, 29, 71, 87, 145, 213, 355, 435, 659, 1065, 1977, 2059, 3295, 6177, 9885, 10295, 19111, 30885, 46789, 57333, 95555, 140367, 233945, 286665, 701835, 1356881, 4070643, 6784405, 20353215]

約数ペア:

[(1, 20353215), (3, 6784405), (5, 4070643), (15, 1356881), (29, 701835), (71, 286665), (87, 233945), (145, 140367), (213, 95555), (355, 57333), (435, 46789), (659, 30885), (1065, 19111), (1977, 10295), (2059, 9885), (3295, 6177)]