21784770

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{229}}^1$

素因数の和:400

約数の個数: 96

約数和(自身を含む): 65445120

約数和(自身を除く): 43660350

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 151, 210, 229, 302, 315, 453, 458, 630, 687, 755, 906, 1057, 1145, 1359, 1374, 1510, 1603, 2061, 2114, 2265, 2290, 2718, 3171, 3206, 3435, 4122, 4530, 4809, 5285, 6342, 6795, 6870, 8015, 9513, 9618, 10305, 10570, 13590, 14427, 15855, 16030, 19026, 20610, 24045, 28854, 31710, 34579, 47565, 48090, 69158, 72135, 95130, 103737, 144270, 172895, 207474, 242053, 311211, 345790, 484106, 518685, 622422, 726159, 1037370, 1210265, 1452318, 1556055, 2178477, 2420530, 3112110, 3630795, 4356954, 7261590, 10892385, 21784770]

約数ペア:

[(1, 21784770), (2, 10892385), (3, 7261590), (5, 4356954), (6, 3630795), (7, 3112110), (9, 2420530), (10, 2178477), (14, 1556055), (15, 1452318), (18, 1210265), (21, 1037370), (30, 726159), (35, 622422), (42, 518685), (45, 484106), (63, 345790), (70, 311211), (90, 242053), (105, 207474), (126, 172895), (151, 144270), (210, 103737), (229, 95130), (302, 72135), (315, 69158), (453, 48090), (458, 47565), (630, 34579), (687, 31710), (755, 28854), (906, 24045), (1057, 20610), (1145, 19026), (1359, 16030), (1374, 15855), (1510, 14427), (1603, 13590), (2061, 10570), (2114, 10305), (2265, 9618), (2290, 9513), (2718, 8015), (3171, 6870), (3206, 6795), (3435, 6342), (4122, 5285), (4530, 4809)]