21266434

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2579}}^1$

素因数の和:2638

約数の個数: 32

約数和(自身を含む): 39628800

約数和(自身を除く): 18362366

約数列:

[1, 2, 7, 14, 19, 31, 38, 62, 133, 217, 266, 434, 589, 1178, 2579, 4123, 5158, 8246, 18053, 36106, 49001, 79949, 98002, 159898, 343007, 559643, 686014, 1119286, 1519031, 3038062, 10633217, 21266434]

約数ペア:

[(1, 21266434), (2, 10633217), (7, 3038062), (14, 1519031), (19, 1119286), (31, 686014), (38, 559643), (62, 343007), (133, 159898), (217, 98002), (266, 79949), (434, 49001), (589, 36106), (1178, 18053), (2579, 8246), (4123, 5158)]