21154232

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 45554400

約数和(自身を除く): 24400168

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 73, 74, 88, 89, 146, 148, 178, 292, 296, 356, 407, 584, 712, 803, 814, 979, 1606, 1628, 1958, 2701, 3212, 3256, 3293, 3916, 5402, 6424, 6497, 6586, 7832, 10804, 12994, 13172, 21608, 25988, 26344, 29711, 36223, 51976, 59422, 71467, 72446, 118844, 142934, 144892, 237688, 240389, 285868, 289784, 480778, 571736, 961556, 1923112, 2644279, 5288558, 10577116, 21154232]

約数ペア:

[(1, 21154232), (2, 10577116), (4, 5288558), (8, 2644279), (11, 1923112), (22, 961556), (37, 571736), (44, 480778), (73, 289784), (74, 285868), (88, 240389), (89, 237688), (146, 144892), (148, 142934), (178, 118844), (292, 72446), (296, 71467), (356, 59422), (407, 51976), (584, 36223), (712, 29711), (803, 26344), (814, 25988), (979, 21608), (1606, 13172), (1628, 12994), (1958, 10804), (2701, 7832), (3212, 6586), (3256, 6497), (3293, 6424), (3916, 5402)]