19959368

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 44755200

約数和(自身を除く): 24795832

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 73, 88, 104, 143, 146, 239, 286, 292, 478, 572, 584, 803, 949, 956, 1144, 1606, 1898, 1912, 2629, 3107, 3212, 3796, 5258, 6214, 6424, 7592, 10439, 10516, 12428, 17447, 20878, 21032, 24856, 34177, 34894, 41756, 68354, 69788, 83512, 136708, 139576, 191917, 226811, 273416, 383834, 453622, 767668, 907244, 1535336, 1814488, 2494921, 4989842, 9979684, 19959368]

約数ペア:

[(1, 19959368), (2, 9979684), (4, 4989842), (8, 2494921), (11, 1814488), (13, 1535336), (22, 907244), (26, 767668), (44, 453622), (52, 383834), (73, 273416), (88, 226811), (104, 191917), (143, 139576), (146, 136708), (239, 83512), (286, 69788), (292, 68354), (478, 41756), (572, 34894), (584, 34177), (803, 24856), (949, 21032), (956, 20878), (1144, 17447), (1606, 12428), (1898, 10516), (1912, 10439), (2629, 7592), (3107, 6424), (3212, 6214), (3796, 5258)]