20591984

素因数分解:

$2^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3469}}^1$

素因数の和:3537

約数の個数: 40

約数和(自身を含む): 46470240

約数和(自身を除く): 25878256

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 53, 56, 106, 112, 212, 371, 424, 742, 848, 1484, 2968, 3469, 5936, 6938, 13876, 24283, 27752, 48566, 55504, 97132, 183857, 194264, 367714, 388528, 735428, 1286999, 1470856, 2573998, 2941712, 5147996, 10295992, 20591984]

約数ペア:

[(1, 20591984), (2, 10295992), (4, 5147996), (7, 2941712), (8, 2573998), (14, 1470856), (16, 1286999), (28, 735428), (53, 388528), (56, 367714), (106, 194264), (112, 183857), (212, 97132), (371, 55504), (424, 48566), (742, 27752), (848, 24283), (1484, 13876), (2968, 6938), (3469, 5936)]