21975226

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 42287616

約数和(自身を除く): 20312390

約数列:

[1, 2, 7, 13, 14, 26, 47, 49, 91, 94, 98, 182, 329, 367, 611, 637, 658, 734, 1222, 1274, 2303, 2569, 4277, 4606, 4771, 5138, 8554, 9542, 17249, 17983, 29939, 33397, 34498, 35966, 59878, 66794, 120743, 224237, 233779, 241486, 448474, 467558, 845201, 1569659, 1690402, 3139318, 10987613, 21975226]

約数ペア:

[(1, 21975226), (2, 10987613), (7, 3139318), (13, 1690402), (14, 1569659), (26, 845201), (47, 467558), (49, 448474), (91, 241486), (94, 233779), (98, 224237), (182, 120743), (329, 66794), (367, 59878), (611, 35966), (637, 34498), (658, 33397), (734, 29939), (1222, 17983), (1274, 17249), (2303, 9542), (2569, 8554), (4277, 5138), (4606, 4771)]