21021150

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{353}}^1\times {\mathrm{397}}^1$

素因数の和:765

約数の個数: 48

約数和(自身を含む): 52411824

約数和(自身を除く): 31390674

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 353, 397, 706, 794, 1059, 1191, 1765, 1985, 2118, 2382, 3530, 3970, 5295, 5955, 8825, 9925, 10590, 11910, 17650, 19850, 26475, 29775, 52950, 59550, 140141, 280282, 420423, 700705, 840846, 1401410, 2102115, 3503525, 4204230, 7007050, 10510575, 21021150]

約数ペア:

[(1, 21021150), (2, 10510575), (3, 7007050), (5, 4204230), (6, 3503525), (10, 2102115), (15, 1401410), (25, 840846), (30, 700705), (50, 420423), (75, 280282), (150, 140141), (353, 59550), (397, 52950), (706, 29775), (794, 26475), (1059, 19850), (1191, 17650), (1765, 11910), (1985, 10590), (2118, 9925), (2382, 8825), (3530, 5955), (3970, 5295)]