21504690

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:349

約数の個数: 80

約数和(自身を含む): 58544640

約数和(自身を除く): 37039950

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 139, 162, 191, 270, 278, 382, 405, 417, 573, 695, 810, 834, 955, 1146, 1251, 1390, 1719, 1910, 2085, 2502, 2865, 3438, 3753, 4170, 5157, 5730, 6255, 7506, 8595, 10314, 11259, 12510, 15471, 17190, 18765, 22518, 25785, 26549, 30942, 37530, 51570, 53098, 56295, 77355, 79647, 112590, 132745, 154710, 159294, 238941, 265490, 398235, 477882, 716823, 796470, 1194705, 1433646, 2150469, 2389410, 3584115, 4300938, 7168230, 10752345, 21504690]

約数ペア:

[(1, 21504690), (2, 10752345), (3, 7168230), (5, 4300938), (6, 3584115), (9, 2389410), (10, 2150469), (15, 1433646), (18, 1194705), (27, 796470), (30, 716823), (45, 477882), (54, 398235), (81, 265490), (90, 238941), (135, 159294), (139, 154710), (162, 132745), (191, 112590), (270, 79647), (278, 77355), (382, 56295), (405, 53098), (417, 51570), (573, 37530), (695, 30942), (810, 26549), (834, 25785), (955, 22518), (1146, 18765), (1251, 17190), (1390, 15471), (1719, 12510), (1910, 11259), (2085, 10314), (2502, 8595), (2865, 7506), (3438, 6255), (3753, 5730), (4170, 5157)]