21238156790

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3209}}^1\times {\mathrm{6823}}^1$

素因数の和:10136

約数の個数: 32

約数和(自身を含む): 38640490560

約数和(自身を除く): 17402333770

約数列:

[1, 2, 5, 10, 97, 194, 485, 970, 3209, 6418, 6823, 13646, 16045, 32090, 34115, 68230, 311273, 622546, 661831, 1323662, 1556365, 3112730, 3309155, 6618310, 21895007, 43790014, 109475035, 218950070, 2123815679, 4247631358, 10619078395, 21238156790]

約数ペア:

[(1, 21238156790), (2, 10619078395), (5, 4247631358), (10, 2123815679), (97, 218950070), (194, 109475035), (485, 43790014), (970, 21895007), (3209, 6618310), (6418, 3309155), (6823, 3112730), (13646, 1556365), (16045, 1323662), (32090, 661831), (34115, 622546), (68230, 311273)]