21631395

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2069}}^1$

素因数の和:2135

約数の個数: 32

約数和(自身を含む): 37558080

約数和(自身を除く): 15926685

約数列:

[1, 3, 5, 15, 17, 41, 51, 85, 123, 205, 255, 615, 697, 2069, 2091, 3485, 6207, 10345, 10455, 31035, 35173, 84829, 105519, 175865, 254487, 424145, 527595, 1272435, 1442093, 4326279, 7210465, 21631395]

約数ペア:

[(1, 21631395), (3, 7210465), (5, 4326279), (15, 1442093), (17, 1272435), (41, 527595), (51, 424145), (85, 254487), (123, 175865), (205, 105519), (255, 84829), (615, 35173), (697, 31035), (2069, 10455), (2091, 10345), (3485, 6207)]