21039424

素因数分解:

$2^6\times 7^2\times {\mathrm{6709}}^1$

素因数の和:6735

約数の個数: 42

約数和(自身を含む): 48573690

約数和(自身を除く): 27534266

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6709, 13418, 26836, 46963, 53672, 93926, 107344, 187852, 214688, 328741, 375704, 429376, 657482, 751408, 1314964, 1502816, 2629928, 3005632, 5259856, 10519712, 21039424]

約数ペア:

[(1, 21039424), (2, 10519712), (4, 5259856), (7, 3005632), (8, 2629928), (14, 1502816), (16, 1314964), (28, 751408), (32, 657482), (49, 429376), (56, 375704), (64, 328741), (98, 214688), (112, 187852), (196, 107344), (224, 93926), (392, 53672), (448, 46963), (784, 26836), (1568, 13418), (3136, 6709)]