20398512

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{9883}}^1$

素因数の和:9937

約数の個数: 40

約数和(自身を含む): 53927104

約数和(自身を除く): 33528592

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 86, 129, 172, 258, 344, 516, 688, 1032, 2064, 9883, 19766, 29649, 39532, 59298, 79064, 118596, 158128, 237192, 424969, 474384, 849938, 1274907, 1699876, 2549814, 3399752, 5099628, 6799504, 10199256, 20398512]

約数ペア:

[(1, 20398512), (2, 10199256), (3, 6799504), (4, 5099628), (6, 3399752), (8, 2549814), (12, 1699876), (16, 1274907), (24, 849938), (43, 474384), (48, 424969), (86, 237192), (129, 158128), (172, 118596), (258, 79064), (344, 59298), (516, 39532), (688, 29649), (1032, 19766), (2064, 9883)]