21734580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{51749}}^1$

素因数の和:51768

約数の個数: 48

約数和(自身を含む): 69552000

約数和(自身を除く): 47817420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 51749, 103498, 155247, 206996, 258745, 310494, 362243, 517490, 620988, 724486, 776235, 1034980, 1086729, 1448972, 1552470, 1811215, 2173458, 3104940, 3622430, 4346916, 5433645, 7244860, 10867290, 21734580]

約数ペア:

[(1, 21734580), (2, 10867290), (3, 7244860), (4, 5433645), (5, 4346916), (6, 3622430), (7, 3104940), (10, 2173458), (12, 1811215), (14, 1552470), (15, 1448972), (20, 1086729), (21, 1034980), (28, 776235), (30, 724486), (35, 620988), (42, 517490), (60, 362243), (70, 310494), (84, 258745), (105, 206996), (140, 155247), (210, 103498), (420, 51749)]