21624015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{5023}}^1$

素因数の和:5079

約数の個数: 32

約数和(自身を含む): 40513536

約数和(自身を除く): 18889521

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 105, 123, 205, 287, 615, 861, 1435, 4305, 5023, 15069, 25115, 35161, 75345, 105483, 175805, 205943, 527415, 617829, 1029715, 1441601, 3089145, 4324803, 7208005, 21624015]

約数ペア:

[(1, 21624015), (3, 7208005), (5, 4324803), (7, 3089145), (15, 1441601), (21, 1029715), (35, 617829), (41, 527415), (105, 205943), (123, 175805), (205, 105483), (287, 75345), (615, 35161), (861, 25115), (1435, 15069), (4305, 5023)]