21054950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1399}}^1$

素因数の和:1461

約数の個数: 48

約数和(自身を含む): 45830400

約数和(自身を除く): 24775450

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 43, 50, 70, 86, 175, 215, 301, 350, 430, 602, 1075, 1399, 1505, 2150, 2798, 3010, 6995, 7525, 9793, 13990, 15050, 19586, 34975, 48965, 60157, 69950, 97930, 120314, 244825, 300785, 421099, 489650, 601570, 842198, 1503925, 2105495, 3007850, 4210990, 10527475, 21054950]

約数ペア:

[(1, 21054950), (2, 10527475), (5, 4210990), (7, 3007850), (10, 2105495), (14, 1503925), (25, 842198), (35, 601570), (43, 489650), (50, 421099), (70, 300785), (86, 244825), (175, 120314), (215, 97930), (301, 69950), (350, 60157), (430, 48965), (602, 34975), (1075, 19586), (1399, 15050), (1505, 13990), (2150, 9793), (2798, 7525), (3010, 6995)]