19997463906

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{876851}}^1$

素因数の和:877047

約数の個数: 48

約数和(自身を含む): 49791163968

約数和(自身を除く): 29793700062

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 181, 362, 543, 1086, 1267, 1629, 2534, 3258, 3801, 7602, 11403, 22806, 876851, 1753702, 2630553, 5261106, 6137957, 7891659, 12275914, 15783318, 18413871, 36827742, 55241613, 110483226, 158710031, 317420062, 476130093, 952260186, 1110970217, 1428390279, 2221940434, 2856780558, 3332910651, 6665821302, 9998731953, 19997463906]

約数ペア:

[(1, 19997463906), (2, 9998731953), (3, 6665821302), (6, 3332910651), (7, 2856780558), (9, 2221940434), (14, 1428390279), (18, 1110970217), (21, 952260186), (42, 476130093), (63, 317420062), (126, 158710031), (181, 110483226), (362, 55241613), (543, 36827742), (1086, 18413871), (1267, 15783318), (1629, 12275914), (2534, 7891659), (3258, 6137957), (3801, 5261106), (7602, 2630553), (11403, 1753702), (22806, 876851)]