21198762

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^2$

素因数の和:184

約数の個数: 72

約数和(自身を含む): 53100684

約数和(自身を除く): 31901922

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 73, 78, 102, 117, 146, 153, 219, 221, 234, 306, 438, 442, 657, 663, 949, 1241, 1314, 1326, 1898, 1989, 2482, 2847, 3723, 3978, 5329, 5694, 7446, 8541, 10658, 11169, 15987, 16133, 17082, 22338, 31974, 32266, 47961, 48399, 69277, 90593, 95922, 96798, 138554, 145197, 181186, 207831, 271779, 290394, 415662, 543558, 623493, 815337, 1177709, 1246986, 1630674, 2355418, 3533127, 7066254, 10599381, 21198762]

約数ペア:

[(1, 21198762), (2, 10599381), (3, 7066254), (6, 3533127), (9, 2355418), (13, 1630674), (17, 1246986), (18, 1177709), (26, 815337), (34, 623493), (39, 543558), (51, 415662), (73, 290394), (78, 271779), (102, 207831), (117, 181186), (146, 145197), (153, 138554), (219, 96798), (221, 95922), (234, 90593), (306, 69277), (438, 48399), (442, 47961), (657, 32266), (663, 31974), (949, 22338), (1241, 17082), (1314, 16133), (1326, 15987), (1898, 11169), (1989, 10658), (2482, 8541), (2847, 7446), (3723, 5694), (3978, 5329)]