21336568

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{6553}}^1$

素因数の和:6607

約数の個数: 32

約数和(自身を含む): 44829360

約数和(自身を除く): 23492792

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 148, 296, 407, 814, 1628, 3256, 6553, 13106, 26212, 52424, 72083, 144166, 242461, 288332, 484922, 576664, 969844, 1939688, 2667071, 5334142, 10668284, 21336568]

約数ペア:

[(1, 21336568), (2, 10668284), (4, 5334142), (8, 2667071), (11, 1939688), (22, 969844), (37, 576664), (44, 484922), (74, 288332), (88, 242461), (148, 144166), (296, 72083), (407, 52424), (814, 26212), (1628, 13106), (3256, 6553)]