21895552

素因数分解:

$2^7\times 7^2\times {\mathrm{3491}}^1$

素因数の和:3519

約数の個数: 48

約数和(自身を含む): 50756220

約数和(自身を除く): 28860668

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 3491, 6272, 6982, 13964, 24437, 27928, 48874, 55856, 97748, 111712, 171059, 195496, 223424, 342118, 390992, 446848, 684236, 781984, 1368472, 1563968, 2736944, 3127936, 5473888, 10947776, 21895552]

約数ペア:

[(1, 21895552), (2, 10947776), (4, 5473888), (7, 3127936), (8, 2736944), (14, 1563968), (16, 1368472), (28, 781984), (32, 684236), (49, 446848), (56, 390992), (64, 342118), (98, 223424), (112, 195496), (128, 171059), (196, 111712), (224, 97748), (392, 55856), (448, 48874), (784, 27928), (896, 24437), (1568, 13964), (3136, 6982), (3491, 6272)]