21228736

素因数分解:

$2^6\times {\mathrm{409}}^1\times {\mathrm{811}}^1$

素因数の和:1232

約数の個数: 28

約数和(自身を含む): 42280840

約数和(自身を除く): 21052104

約数列:

[1, 2, 4, 8, 16, 32, 64, 409, 811, 818, 1622, 1636, 3244, 3272, 6488, 6544, 12976, 13088, 25952, 26176, 51904, 331699, 663398, 1326796, 2653592, 5307184, 10614368, 21228736]

約数ペア:

[(1, 21228736), (2, 10614368), (4, 5307184), (8, 2653592), (16, 1326796), (32, 663398), (64, 331699), (409, 51904), (811, 26176), (818, 25952), (1622, 13088), (1636, 12976), (3244, 6544), (3272, 6488)]