21004144

素因数分解:

$2^4\times 7^2\times {\mathrm{73}}^1\times {\mathrm{367}}^1$

素因数の和:462

約数の個数: 60

約数和(自身を含む): 48118944

約数和(自身を除く): 27114800

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 73, 98, 112, 146, 196, 292, 367, 392, 511, 584, 734, 784, 1022, 1168, 1468, 2044, 2569, 2936, 3577, 4088, 5138, 5872, 7154, 8176, 10276, 14308, 17983, 20552, 26791, 28616, 35966, 41104, 53582, 57232, 71932, 107164, 143864, 187537, 214328, 287728, 375074, 428656, 750148, 1312759, 1500296, 2625518, 3000592, 5251036, 10502072, 21004144]

約数ペア:

[(1, 21004144), (2, 10502072), (4, 5251036), (7, 3000592), (8, 2625518), (14, 1500296), (16, 1312759), (28, 750148), (49, 428656), (56, 375074), (73, 287728), (98, 214328), (112, 187537), (146, 143864), (196, 107164), (292, 71932), (367, 57232), (392, 53582), (511, 41104), (584, 35966), (734, 28616), (784, 26791), (1022, 20552), (1168, 17983), (1468, 14308), (2044, 10276), (2569, 8176), (2936, 7154), (3577, 5872), (4088, 5138)]