18863784

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 53737320

約数和(自身を除く): 34873536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 73, 74, 97, 111, 146, 148, 194, 219, 222, 291, 292, 296, 333, 388, 438, 444, 582, 584, 657, 666, 776, 873, 876, 888, 1164, 1314, 1332, 1746, 1752, 2328, 2628, 2664, 2701, 3492, 3589, 5256, 5402, 6984, 7081, 7178, 8103, 10767, 10804, 14162, 14356, 16206, 21243, 21534, 21608, 24309, 28324, 28712, 32301, 32412, 42486, 43068, 48618, 56648, 63729, 64602, 64824, 84972, 86136, 97236, 127458, 129204, 169944, 194472, 254916, 258408, 261997, 509832, 523994, 785991, 1047988, 1571982, 2095976, 2357973, 3143964, 4715946, 6287928, 9431892, 18863784]

約数ペア:

[(1, 18863784), (2, 9431892), (3, 6287928), (4, 4715946), (6, 3143964), (8, 2357973), (9, 2095976), (12, 1571982), (18, 1047988), (24, 785991), (36, 523994), (37, 509832), (72, 261997), (73, 258408), (74, 254916), (97, 194472), (111, 169944), (146, 129204), (148, 127458), (194, 97236), (219, 86136), (222, 84972), (291, 64824), (292, 64602), (296, 63729), (333, 56648), (388, 48618), (438, 43068), (444, 42486), (582, 32412), (584, 32301), (657, 28712), (666, 28324), (776, 24309), (873, 21608), (876, 21534), (888, 21243), (1164, 16206), (1314, 14356), (1332, 14162), (1746, 10804), (1752, 10767), (2328, 8103), (2628, 7178), (2664, 7081), (2701, 6984), (3492, 5402), (3589, 5256)]