21796740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17299}}^1$

素因数の和:17321

約数の個数: 72

約数和(自身を含む): 75566400

約数和(自身を除く): 53769660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 17299, 34598, 51897, 69196, 86495, 103794, 121093, 155691, 172990, 207588, 242186, 259485, 311382, 345980, 363279, 484372, 518970, 605465, 622764, 726558, 778455, 1037940, 1089837, 1210930, 1453116, 1556910, 1816395, 2179674, 2421860, 3113820, 3632790, 4359348, 5449185, 7265580, 10898370, 21796740]

約数ペア:

[(1, 21796740), (2, 10898370), (3, 7265580), (4, 5449185), (5, 4359348), (6, 3632790), (7, 3113820), (9, 2421860), (10, 2179674), (12, 1816395), (14, 1556910), (15, 1453116), (18, 1210930), (20, 1089837), (21, 1037940), (28, 778455), (30, 726558), (35, 622764), (36, 605465), (42, 518970), (45, 484372), (60, 363279), (63, 345980), (70, 311382), (84, 259485), (90, 242186), (105, 207588), (126, 172990), (140, 155691), (180, 121093), (210, 103794), (252, 86495), (315, 69196), (420, 51897), (630, 34598), (1260, 17299)]