18420512

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1217}}^1$

素因数の和:1281

約数の個数: 48

約数和(自身を含む): 40515552

約数和(自身を除く): 22095040

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 43, 44, 86, 88, 172, 176, 344, 352, 473, 688, 946, 1217, 1376, 1892, 2434, 3784, 4868, 7568, 9736, 13387, 15136, 19472, 26774, 38944, 52331, 53548, 104662, 107096, 209324, 214192, 418648, 428384, 575641, 837296, 1151282, 1674592, 2302564, 4605128, 9210256, 18420512]

約数ペア:

[(1, 18420512), (2, 9210256), (4, 4605128), (8, 2302564), (11, 1674592), (16, 1151282), (22, 837296), (32, 575641), (43, 428384), (44, 418648), (86, 214192), (88, 209324), (172, 107096), (176, 104662), (344, 53548), (352, 52331), (473, 38944), (688, 26774), (946, 19472), (1217, 15136), (1376, 13387), (1892, 9736), (2434, 7568), (3784, 4868)]