16989128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 36590400

約数和(自身を除く): 19601272

約数列:

[1, 2, 4, 8, 13, 26, 29, 43, 52, 58, 86, 104, 116, 131, 172, 232, 262, 344, 377, 524, 559, 754, 1048, 1118, 1247, 1508, 1703, 2236, 2494, 3016, 3406, 3799, 4472, 4988, 5633, 6812, 7598, 9976, 11266, 13624, 15196, 16211, 22532, 30392, 32422, 45064, 49387, 64844, 73229, 98774, 129688, 146458, 163357, 197548, 292916, 326714, 395096, 585832, 653428, 1306856, 2123641, 4247282, 8494564, 16989128]

約数ペア:

[(1, 16989128), (2, 8494564), (4, 4247282), (8, 2123641), (13, 1306856), (26, 653428), (29, 585832), (43, 395096), (52, 326714), (58, 292916), (86, 197548), (104, 163357), (116, 146458), (131, 129688), (172, 98774), (232, 73229), (262, 64844), (344, 49387), (377, 45064), (524, 32422), (559, 30392), (754, 22532), (1048, 16211), (1118, 15196), (1247, 13624), (1508, 11266), (1703, 9976), (2236, 7598), (2494, 6812), (3016, 5633), (3406, 4988), (3799, 4472)]