21441950

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9973}}^1$

素因数の和:10028

約数の個数: 24

約数和(自身を含む): 40813608

約数和(自身を除く): 19371658

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9973, 19946, 49865, 99730, 249325, 428839, 498650, 857678, 2144195, 4288390, 10720975, 21441950]

約数ペア:

[(1, 21441950), (2, 10720975), (5, 4288390), (10, 2144195), (25, 857678), (43, 498650), (50, 428839), (86, 249325), (215, 99730), (430, 49865), (1075, 19946), (2150, 9973)]