21208544

素因数分解:

$2^5\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1297}}^1$

素因数の和:1387

約数の個数: 48

約数和(自身を含む): 48410208

約数和(自身を除く): 27201664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 73, 112, 146, 224, 292, 511, 584, 1022, 1168, 1297, 2044, 2336, 2594, 4088, 5188, 8176, 9079, 10376, 16352, 18158, 20752, 36316, 41504, 72632, 94681, 145264, 189362, 290528, 378724, 662767, 757448, 1325534, 1514896, 2651068, 3029792, 5302136, 10604272, 21208544]

約数ペア:

[(1, 21208544), (2, 10604272), (4, 5302136), (7, 3029792), (8, 2651068), (14, 1514896), (16, 1325534), (28, 757448), (32, 662767), (56, 378724), (73, 290528), (112, 189362), (146, 145264), (224, 94681), (292, 72632), (511, 41504), (584, 36316), (1022, 20752), (1168, 18158), (1297, 16352), (2044, 10376), (2336, 9079), (2594, 8176), (4088, 5188)]