21341950

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:338

約数の個数: 72

約数和(自身を含む): 47836224

約数和(自身を除く): 26494274

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 49, 50, 62, 70, 98, 155, 175, 217, 245, 281, 310, 350, 434, 490, 562, 775, 1085, 1225, 1405, 1519, 1550, 1967, 2170, 2450, 2810, 3038, 3934, 5425, 7025, 7595, 8711, 9835, 10850, 13769, 14050, 15190, 17422, 19670, 27538, 37975, 43555, 49175, 60977, 68845, 75950, 87110, 98350, 121954, 137690, 217775, 304885, 344225, 426839, 435550, 609770, 688450, 853678, 1524425, 2134195, 3048850, 4268390, 10670975, 21341950]

約数ペア:

[(1, 21341950), (2, 10670975), (5, 4268390), (7, 3048850), (10, 2134195), (14, 1524425), (25, 853678), (31, 688450), (35, 609770), (49, 435550), (50, 426839), (62, 344225), (70, 304885), (98, 217775), (155, 137690), (175, 121954), (217, 98350), (245, 87110), (281, 75950), (310, 68845), (350, 60977), (434, 49175), (490, 43555), (562, 37975), (775, 27538), (1085, 19670), (1225, 17422), (1405, 15190), (1519, 14050), (1550, 13769), (1967, 10850), (2170, 9835), (2450, 8711), (2810, 7595), (3038, 7025), (3934, 5425)]