18260216

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9241}}^1$

素因数の和:9279

約数の個数: 32

約数和(自身を含む): 38816400

約数和(自身を除く): 20556184

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 9241, 18482, 36964, 73928, 120133, 175579, 240266, 351158, 480532, 702316, 961064, 1404632, 2282527, 4565054, 9130108, 18260216]

約数ペア:

[(1, 18260216), (2, 9130108), (4, 4565054), (8, 2282527), (13, 1404632), (19, 961064), (26, 702316), (38, 480532), (52, 351158), (76, 240266), (104, 175579), (152, 120133), (247, 73928), (494, 36964), (988, 18482), (1976, 9241)]