19980246

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:142

約数の個数: 96

約数和(自身を含む): 49603680

約数和(自身を除く): 29623434

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 29, 33, 39, 58, 66, 73, 78, 87, 121, 143, 146, 174, 219, 242, 286, 319, 363, 377, 429, 438, 638, 726, 754, 803, 858, 949, 957, 1131, 1573, 1606, 1898, 1914, 2117, 2262, 2409, 2847, 3146, 3509, 4147, 4234, 4719, 4818, 5694, 6351, 7018, 8294, 8833, 9438, 10439, 10527, 12441, 12702, 17666, 20878, 21054, 23287, 24882, 26499, 27521, 31317, 45617, 46574, 52998, 55042, 62634, 69861, 82563, 91234, 114829, 136851, 139722, 165126, 229658, 256157, 273702, 302731, 344487, 512314, 605462, 688974, 768471, 908193, 1536942, 1816386, 3330041, 6660082, 9990123, 19980246]

約数ペア:

[(1, 19980246), (2, 9990123), (3, 6660082), (6, 3330041), (11, 1816386), (13, 1536942), (22, 908193), (26, 768471), (29, 688974), (33, 605462), (39, 512314), (58, 344487), (66, 302731), (73, 273702), (78, 256157), (87, 229658), (121, 165126), (143, 139722), (146, 136851), (174, 114829), (219, 91234), (242, 82563), (286, 69861), (319, 62634), (363, 55042), (377, 52998), (429, 46574), (438, 45617), (638, 31317), (726, 27521), (754, 26499), (803, 24882), (858, 23287), (949, 21054), (957, 20878), (1131, 17666), (1573, 12702), (1606, 12441), (1898, 10527), (1914, 10439), (2117, 9438), (2262, 8833), (2409, 8294), (2847, 7018), (3146, 6351), (3509, 5694), (4147, 4818), (4234, 4719)]