19974985856

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1311383}}^1$

素因数の和:1311421

約数の個数: 64

約数和(自身を含む): 48154020480

約数和(自身を除く): 28179034624

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, 1904, 2176, 3808, 7616, 15232, 1311383, 2622766, 5245532, 9179681, 10491064, 18359362, 20982128, 22293511, 36718724, 41964256, 44587022, 73437448, 83928512, 89174044, 146874896, 156054577, 167857024, 178348088, 293749792, 312109154, 356696176, 587499584, 624218308, 713392352, 1174999168, 1248436616, 1426784704, 2496873232, 2853569408, 4993746464, 9987492928, 19974985856]

約数ペア:

[(1, 19974985856), (2, 9987492928), (4, 4993746464), (7, 2853569408), (8, 2496873232), (14, 1426784704), (16, 1248436616), (17, 1174999168), (28, 713392352), (32, 624218308), (34, 587499584), (56, 356696176), (64, 312109154), (68, 293749792), (112, 178348088), (119, 167857024), (128, 156054577), (136, 146874896), (224, 89174044), (238, 83928512), (272, 73437448), (448, 44587022), (476, 41964256), (544, 36718724), (896, 22293511), (952, 20982128), (1088, 18359362), (1904, 10491064), (2176, 9179681), (3808, 5245532), (7616, 2622766), (15232, 1311383)]