18970801948

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{626761}}^1$

素因数の和:626842

約数の個数: 48

約数和(自身を含む): 40433670144

約数和(自身を除く): 21462868196

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 47, 92, 94, 161, 188, 322, 329, 644, 658, 1081, 1316, 2162, 4324, 7567, 15134, 30268, 626761, 1253522, 2507044, 4387327, 8774654, 14415503, 17549308, 28831006, 29457767, 57662012, 58915534, 100908521, 117831068, 201817042, 206204369, 403634084, 412408738, 677528641, 824817476, 1355057282, 2710114564, 4742700487, 9485400974, 18970801948]

約数ペア:

[(1, 18970801948), (2, 9485400974), (4, 4742700487), (7, 2710114564), (14, 1355057282), (23, 824817476), (28, 677528641), (46, 412408738), (47, 403634084), (92, 206204369), (94, 201817042), (161, 117831068), (188, 100908521), (322, 58915534), (329, 57662012), (644, 29457767), (658, 28831006), (1081, 17549308), (1316, 14415503), (2162, 8774654), (4324, 4387327), (7567, 2507044), (15134, 1253522), (30268, 626761)]