19973712

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:233

約数の個数: 120

約数和(自身を含む): 60030880

約数和(自身を除く): 40057168

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 19, 22, 24, 33, 38, 44, 48, 57, 66, 76, 88, 114, 121, 132, 152, 176, 181, 209, 228, 242, 264, 304, 362, 363, 418, 456, 484, 528, 543, 627, 724, 726, 836, 912, 968, 1086, 1254, 1448, 1452, 1672, 1936, 1991, 2172, 2299, 2508, 2896, 2904, 3344, 3439, 3982, 4344, 4598, 5016, 5808, 5973, 6878, 6897, 7964, 8688, 9196, 10032, 10317, 11946, 13756, 13794, 15928, 18392, 20634, 21901, 23892, 27512, 27588, 31856, 36784, 37829, 41268, 43802, 47784, 55024, 55176, 65703, 75658, 82536, 87604, 95568, 110352, 113487, 131406, 151316, 165072, 175208, 226974, 262812, 302632, 350416, 416119, 453948, 525624, 605264, 832238, 907896, 1051248, 1248357, 1664476, 1815792, 2496714, 3328952, 4993428, 6657904, 9986856, 19973712]

約数ペア:

[(1, 19973712), (2, 9986856), (3, 6657904), (4, 4993428), (6, 3328952), (8, 2496714), (11, 1815792), (12, 1664476), (16, 1248357), (19, 1051248), (22, 907896), (24, 832238), (33, 605264), (38, 525624), (44, 453948), (48, 416119), (57, 350416), (66, 302632), (76, 262812), (88, 226974), (114, 175208), (121, 165072), (132, 151316), (152, 131406), (176, 113487), (181, 110352), (209, 95568), (228, 87604), (242, 82536), (264, 75658), (304, 65703), (362, 55176), (363, 55024), (418, 47784), (456, 43802), (484, 41268), (528, 37829), (543, 36784), (627, 31856), (724, 27588), (726, 27512), (836, 23892), (912, 21901), (968, 20634), (1086, 18392), (1254, 15928), (1448, 13794), (1452, 13756), (1672, 11946), (1936, 10317), (1991, 10032), (2172, 9196), (2299, 8688), (2508, 7964), (2896, 6897), (2904, 6878), (3344, 5973), (3439, 5808), (3982, 5016), (4344, 4598)]