21174444

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:379

約数の個数: 72

約数和(自身を含む): 56609280

約数和(自身を除く): 35434836

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 107, 138, 207, 214, 239, 276, 321, 414, 428, 478, 642, 717, 828, 956, 963, 1284, 1434, 1926, 2151, 2461, 2868, 3852, 4302, 4922, 5497, 7383, 8604, 9844, 10994, 14766, 16491, 21988, 22149, 25573, 29532, 32982, 44298, 49473, 51146, 65964, 76719, 88596, 98946, 102292, 153438, 197892, 230157, 306876, 460314, 588179, 920628, 1176358, 1764537, 2352716, 3529074, 5293611, 7058148, 10587222, 21174444]

約数ペア:

[(1, 21174444), (2, 10587222), (3, 7058148), (4, 5293611), (6, 3529074), (9, 2352716), (12, 1764537), (18, 1176358), (23, 920628), (36, 588179), (46, 460314), (69, 306876), (92, 230157), (107, 197892), (138, 153438), (207, 102292), (214, 98946), (239, 88596), (276, 76719), (321, 65964), (414, 51146), (428, 49473), (478, 44298), (642, 32982), (717, 29532), (828, 25573), (956, 22149), (963, 21988), (1284, 16491), (1434, 14766), (1926, 10994), (2151, 9844), (2461, 8604), (2868, 7383), (3852, 5497), (4302, 4922)]