19958328

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21323}}^1$

素因数の和:21348

約数の個数: 48

約数和(自身を含む): 58214520

約数和(自身を除く): 38256192

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 21323, 42646, 63969, 85292, 127938, 170584, 191907, 255876, 277199, 383814, 511752, 554398, 767628, 831597, 1108796, 1535256, 1663194, 2217592, 2494791, 3326388, 4989582, 6652776, 9979164, 19958328]

約数ペア:

[(1, 19958328), (2, 9979164), (3, 6652776), (4, 4989582), (6, 3326388), (8, 2494791), (9, 2217592), (12, 1663194), (13, 1535256), (18, 1108796), (24, 831597), (26, 767628), (36, 554398), (39, 511752), (52, 383814), (72, 277199), (78, 255876), (104, 191907), (117, 170584), (156, 127938), (234, 85292), (312, 63969), (468, 42646), (936, 21323)]