18841984

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1237}}^1$

素因数の和:1275

約数の個数: 64

約数和(自身を含む): 45459360

約数和(自身を除く): 26617376

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 272, 448, 476, 544, 896, 952, 1088, 1237, 1904, 2176, 2474, 3808, 4948, 7616, 8659, 9896, 15232, 17318, 19792, 21029, 34636, 39584, 42058, 69272, 79168, 84116, 138544, 147203, 158336, 168232, 277088, 294406, 336464, 554176, 588812, 672928, 1108352, 1177624, 1345856, 2355248, 2691712, 4710496, 9420992, 18841984]

約数ペア:

[(1, 18841984), (2, 9420992), (4, 4710496), (7, 2691712), (8, 2355248), (14, 1345856), (16, 1177624), (17, 1108352), (28, 672928), (32, 588812), (34, 554176), (56, 336464), (64, 294406), (68, 277088), (112, 168232), (119, 158336), (128, 147203), (136, 138544), (224, 84116), (238, 79168), (272, 69272), (448, 42058), (476, 39584), (544, 34636), (896, 21029), (952, 19792), (1088, 17318), (1237, 15232), (1904, 9896), (2176, 8659), (2474, 7616), (3808, 4948)]