18735892

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{619}}^1$

素因数の和:700

約数の個数: 48

約数和(自身を含む): 39997440

約数和(自身を除く): 21261548

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 47, 92, 94, 161, 188, 322, 329, 619, 644, 658, 1081, 1238, 1316, 2162, 2476, 4324, 4333, 7567, 8666, 14237, 15134, 17332, 28474, 29093, 30268, 56948, 58186, 99659, 116372, 199318, 203651, 398636, 407302, 669139, 814604, 1338278, 2676556, 4683973, 9367946, 18735892]

約数ペア:

[(1, 18735892), (2, 9367946), (4, 4683973), (7, 2676556), (14, 1338278), (23, 814604), (28, 669139), (46, 407302), (47, 398636), (92, 203651), (94, 199318), (161, 116372), (188, 99659), (322, 58186), (329, 56948), (619, 30268), (644, 29093), (658, 28474), (1081, 17332), (1238, 15134), (1316, 14237), (2162, 8666), (2476, 7567), (4324, 4333)]