18405968

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1381}}^1$

素因数の和:1420

約数の個数: 60

約数和(自身を含む): 43955892

約数和(自身を除く): 25549924

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 49, 56, 68, 98, 112, 119, 136, 196, 238, 272, 392, 476, 784, 833, 952, 1381, 1666, 1904, 2762, 3332, 5524, 6664, 9667, 11048, 13328, 19334, 22096, 23477, 38668, 46954, 67669, 77336, 93908, 135338, 154672, 164339, 187816, 270676, 328678, 375632, 541352, 657356, 1082704, 1150373, 1314712, 2300746, 2629424, 4601492, 9202984, 18405968]

約数ペア:

[(1, 18405968), (2, 9202984), (4, 4601492), (7, 2629424), (8, 2300746), (14, 1314712), (16, 1150373), (17, 1082704), (28, 657356), (34, 541352), (49, 375632), (56, 328678), (68, 270676), (98, 187816), (112, 164339), (119, 154672), (136, 135338), (196, 93908), (238, 77336), (272, 67669), (392, 46954), (476, 38668), (784, 23477), (833, 22096), (952, 19334), (1381, 13328), (1666, 11048), (1904, 9667), (2762, 6664), (3332, 5524)]