21391300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{30559}}^1$

素因数の和:30580

約数の個数: 36

約数和(自身を含む): 53052160

約数和(自身を除く): 31660860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 30559, 61118, 122236, 152795, 213913, 305590, 427826, 611180, 763975, 855652, 1069565, 1527950, 2139130, 3055900, 4278260, 5347825, 10695650, 21391300]

約数ペア:

[(1, 21391300), (2, 10695650), (4, 5347825), (5, 4278260), (7, 3055900), (10, 2139130), (14, 1527950), (20, 1069565), (25, 855652), (28, 763975), (35, 611180), (50, 427826), (70, 305590), (100, 213913), (140, 152795), (175, 122236), (350, 61118), (700, 30559)]