21283519616

素因数分解:

$2^7\times {\mathrm{97}}^1\times {\mathrm{223}}^1\times {\mathrm{7687}}^1$

素因数の和:8021

約数の個数: 64

約数和(自身を含む): 43035578880

約数和(自身を除く): 21752059264

約数列:

[1, 2, 4, 8, 16, 32, 64, 97, 128, 194, 223, 388, 446, 776, 892, 1552, 1784, 3104, 3568, 6208, 7136, 7687, 12416, 14272, 15374, 21631, 28544, 30748, 43262, 61496, 86524, 122992, 173048, 245984, 346096, 491968, 692192, 745639, 983936, 1384384, 1491278, 1714201, 2768768, 2982556, 3428402, 5965112, 6856804, 11930224, 13713608, 23860448, 27427216, 47720896, 54854432, 95441792, 109708864, 166277497, 219417728, 332554994, 665109988, 1330219976, 2660439952, 5320879904, 10641759808, 21283519616]

約数ペア:

[(1, 21283519616), (2, 10641759808), (4, 5320879904), (8, 2660439952), (16, 1330219976), (32, 665109988), (64, 332554994), (97, 219417728), (128, 166277497), (194, 109708864), (223, 95441792), (388, 54854432), (446, 47720896), (776, 27427216), (892, 23860448), (1552, 13713608), (1784, 11930224), (3104, 6856804), (3568, 5965112), (6208, 3428402), (7136, 2982556), (7687, 2768768), (12416, 1714201), (14272, 1491278), (15374, 1384384), (21631, 983936), (28544, 745639), (30748, 692192), (43262, 491968), (61496, 346096), (86524, 245984), (122992, 173048)]