21130300

素因数分解:

$2^2\times 5^2\times {\mathrm{131}}^1\times {\mathrm{1613}}^1$

素因数の和:1758

約数の個数: 36

約数和(自身を含む): 46231416

約数和(自身を除く): 25101116

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 131, 262, 524, 655, 1310, 1613, 2620, 3226, 3275, 6452, 6550, 8065, 13100, 16130, 32260, 40325, 80650, 161300, 211303, 422606, 845212, 1056515, 2113030, 4226060, 5282575, 10565150, 21130300]

約数ペア:

[(1, 21130300), (2, 10565150), (4, 5282575), (5, 4226060), (10, 2113030), (20, 1056515), (25, 845212), (50, 422606), (100, 211303), (131, 161300), (262, 80650), (524, 40325), (655, 32260), (1310, 16130), (1613, 13100), (2620, 8065), (3226, 6550), (3275, 6452)]