20421376

素因数分解:

$2^8\times {\mathrm{241}}^1\times {\mathrm{331}}^1$

素因数の和:588

約数の個数: 36

約数和(自身を含む): 41055784

約数和(自身を除く): 20634408

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 241, 256, 331, 482, 662, 964, 1324, 1928, 2648, 3856, 5296, 7712, 10592, 15424, 21184, 30848, 42368, 61696, 79771, 84736, 159542, 319084, 638168, 1276336, 2552672, 5105344, 10210688, 20421376]

約数ペア:

[(1, 20421376), (2, 10210688), (4, 5105344), (8, 2552672), (16, 1276336), (32, 638168), (64, 319084), (128, 159542), (241, 84736), (256, 79771), (331, 61696), (482, 42368), (662, 30848), (964, 21184), (1324, 15424), (1928, 10592), (2648, 7712), (3856, 5296)]