21968752

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105619}}^1$

素因数の和:105640

約数の個数: 20

約数和(自身を含む): 45839080

約数和(自身を除く): 23870328

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105619, 211238, 422476, 844952, 1373047, 1689904, 2746094, 5492188, 10984376, 21968752]

約数ペア:

[(1, 21968752), (2, 10984376), (4, 5492188), (8, 2746094), (13, 1689904), (16, 1373047), (26, 844952), (52, 422476), (104, 211238), (208, 105619)]