20409438

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{3547}}^1$

素因数の和:3696

約数の個数: 32

約数和(自身を含む): 47003904

約数和(自身を除く): 26594466

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 137, 274, 411, 822, 959, 1918, 2877, 3547, 5754, 7094, 10641, 21282, 24829, 49658, 74487, 148974, 485939, 971878, 1457817, 2915634, 3401573, 6803146, 10204719, 20409438]

約数ペア:

[(1, 20409438), (2, 10204719), (3, 6803146), (6, 3401573), (7, 2915634), (14, 1457817), (21, 971878), (42, 485939), (137, 148974), (274, 74487), (411, 49658), (822, 24829), (959, 21282), (1918, 10641), (2877, 7094), (3547, 5754)]