21821605

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{3461}}^1$

素因数の和:3576

約数の個数: 16

約数和(自身を含む): 28499184

約数和(自身を除く): 6677579

約数列:

[1, 5, 13, 65, 97, 485, 1261, 3461, 6305, 17305, 44993, 224965, 335717, 1678585, 4364321, 21821605]

約数ペア:

[(1, 21821605), (5, 4364321), (13, 1678585), (65, 335717), (97, 224965), (485, 44993), (1261, 17305), (3461, 6305)]