20921213336

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1217}}^1\times {\mathrm{3083}}^1$

素因数の和:4364

約数の個数: 64

約数和(自身を含む): 42596578080

約数和(自身を除く): 21675364744

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1217, 1394, 2434, 2788, 3083, 4868, 5576, 6166, 9736, 12332, 20689, 24664, 41378, 49897, 52411, 82756, 99794, 104822, 126403, 165512, 199588, 209644, 252806, 399176, 419288, 505612, 848249, 1011224, 1696498, 2148851, 3392996, 3752011, 4297702, 6785992, 7504022, 8595404, 15008044, 17190808, 30016088, 63784187, 127568374, 153832451, 255136748, 307664902, 510273496, 615329804, 1230659608, 2615151667, 5230303334, 10460606668, 20921213336]

約数ペア:

[(1, 20921213336), (2, 10460606668), (4, 5230303334), (8, 2615151667), (17, 1230659608), (34, 615329804), (41, 510273496), (68, 307664902), (82, 255136748), (136, 153832451), (164, 127568374), (328, 63784187), (697, 30016088), (1217, 17190808), (1394, 15008044), (2434, 8595404), (2788, 7504022), (3083, 6785992), (4868, 4297702), (5576, 3752011), (6166, 3392996), (9736, 2148851), (12332, 1696498), (20689, 1011224), (24664, 848249), (41378, 505612), (49897, 419288), (52411, 399176), (82756, 252806), (99794, 209644), (104822, 199588), (126403, 165512)]