21890848

素因数分解:

$2^5\times 7^2\times {\mathrm{23}}^1\times {\mathrm{607}}^1$

素因数の和:654

約数の個数: 72

約数和(自身を含む): 52399872

約数和(自身を除く): 30509024

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 49, 56, 92, 98, 112, 161, 184, 196, 224, 322, 368, 392, 607, 644, 736, 784, 1127, 1214, 1288, 1568, 2254, 2428, 2576, 4249, 4508, 4856, 5152, 8498, 9016, 9712, 13961, 16996, 18032, 19424, 27922, 29743, 33992, 36064, 55844, 59486, 67984, 97727, 111688, 118972, 135968, 195454, 223376, 237944, 390908, 446752, 475888, 684089, 781816, 951776, 1368178, 1563632, 2736356, 3127264, 5472712, 10945424, 21890848]

約数ペア:

[(1, 21890848), (2, 10945424), (4, 5472712), (7, 3127264), (8, 2736356), (14, 1563632), (16, 1368178), (23, 951776), (28, 781816), (32, 684089), (46, 475888), (49, 446752), (56, 390908), (92, 237944), (98, 223376), (112, 195454), (161, 135968), (184, 118972), (196, 111688), (224, 97727), (322, 67984), (368, 59486), (392, 55844), (607, 36064), (644, 33992), (736, 29743), (784, 27922), (1127, 19424), (1214, 18032), (1288, 16996), (1568, 13961), (2254, 9712), (2428, 9016), (2576, 8498), (4249, 5152), (4508, 4856)]