19039696

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{383}}^1$

素因数の和:643

約数の個数: 40

約数和(自身を含む): 39997440

約数和(自身を除く): 20957744

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 239, 383, 478, 766, 956, 1532, 1912, 3064, 3107, 3824, 4979, 6128, 6214, 9958, 12428, 19916, 24856, 39832, 49712, 79664, 91537, 183074, 366148, 732296, 1189981, 1464592, 2379962, 4759924, 9519848, 19039696]

約数ペア:

[(1, 19039696), (2, 9519848), (4, 4759924), (8, 2379962), (13, 1464592), (16, 1189981), (26, 732296), (52, 366148), (104, 183074), (208, 91537), (239, 79664), (383, 49712), (478, 39832), (766, 24856), (956, 19916), (1532, 12428), (1912, 9958), (3064, 6214), (3107, 6128), (3824, 4979)]