21881650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{619}}^1$

素因数の和:739

約数の個数: 48

約数和(自身を含む): 47050560

約数和(自身を除く): 25168910

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 101, 175, 202, 350, 505, 619, 707, 1010, 1238, 1414, 2525, 3095, 3535, 4333, 5050, 6190, 7070, 8666, 15475, 17675, 21665, 30950, 35350, 43330, 62519, 108325, 125038, 216650, 312595, 437633, 625190, 875266, 1562975, 2188165, 3125950, 4376330, 10940825, 21881650]

約数ペア:

[(1, 21881650), (2, 10940825), (5, 4376330), (7, 3125950), (10, 2188165), (14, 1562975), (25, 875266), (35, 625190), (50, 437633), (70, 312595), (101, 216650), (175, 125038), (202, 108325), (350, 62519), (505, 43330), (619, 35350), (707, 30950), (1010, 21665), (1238, 17675), (1414, 15475), (2525, 8666), (3095, 7070), (3535, 6190), (4333, 5050)]