21000681184

素因数分解:

$2^5\times 7^1\times {\mathrm{7919}}^1\times {\mathrm{11839}}^1$

素因数の和:19775

約数の個数: 48

約数和(自身を含む): 47261491200

約数和(自身を除く): 26260810016

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 7919, 11839, 15838, 23678, 31676, 47356, 55433, 63352, 82873, 94712, 110866, 126704, 165746, 189424, 221732, 253408, 331492, 378848, 443464, 662984, 886928, 1325968, 1773856, 2651936, 93753041, 187506082, 375012164, 656271287, 750024328, 1312542574, 1500048656, 2625085148, 3000097312, 5250170296, 10500340592, 21000681184]

約数ペア:

[(1, 21000681184), (2, 10500340592), (4, 5250170296), (7, 3000097312), (8, 2625085148), (14, 1500048656), (16, 1312542574), (28, 750024328), (32, 656271287), (56, 375012164), (112, 187506082), (224, 93753041), (7919, 2651936), (11839, 1773856), (15838, 1325968), (23678, 886928), (31676, 662984), (47356, 443464), (55433, 378848), (63352, 331492), (82873, 253408), (94712, 221732), (110866, 189424), (126704, 165746)]