19693828

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1487}}^1$

素因数の和:1552

約数の個数: 48

約数和(自身を含む): 43997184

約数和(自身を除く): 24303356

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 154, 172, 301, 308, 473, 602, 946, 1204, 1487, 1892, 2974, 3311, 5948, 6622, 10409, 13244, 16357, 20818, 32714, 41636, 63941, 65428, 114499, 127882, 228998, 255764, 447587, 457996, 703351, 895174, 1406702, 1790348, 2813404, 4923457, 9846914, 19693828]

約数ペア:

[(1, 19693828), (2, 9846914), (4, 4923457), (7, 2813404), (11, 1790348), (14, 1406702), (22, 895174), (28, 703351), (43, 457996), (44, 447587), (77, 255764), (86, 228998), (154, 127882), (172, 114499), (301, 65428), (308, 63941), (473, 41636), (602, 32714), (946, 20818), (1204, 16357), (1487, 13244), (1892, 10409), (2974, 6622), (3311, 5948)]