20974784

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:445

約数の個数: 56

約数和(自身を含む): 44866560

約数和(自身を除く): 23891776

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 47, 64, 76, 94, 152, 188, 304, 367, 376, 608, 734, 752, 893, 1216, 1468, 1504, 1786, 2936, 3008, 3572, 5872, 6973, 7144, 11744, 13946, 14288, 17249, 23488, 27892, 28576, 34498, 55784, 57152, 68996, 111568, 137992, 223136, 275984, 327731, 446272, 551968, 655462, 1103936, 1310924, 2621848, 5243696, 10487392, 20974784]

約数ペア:

[(1, 20974784), (2, 10487392), (4, 5243696), (8, 2621848), (16, 1310924), (19, 1103936), (32, 655462), (38, 551968), (47, 446272), (64, 327731), (76, 275984), (94, 223136), (152, 137992), (188, 111568), (304, 68996), (367, 57152), (376, 55784), (608, 34498), (734, 28576), (752, 27892), (893, 23488), (1216, 17249), (1468, 14288), (1504, 13946), (1786, 11744), (2936, 7144), (3008, 6973), (3572, 5872)]