21466380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 144

約数和(自身を含む): 68251680

約数和(自身を除く): 46785300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 29, 30, 39, 52, 58, 60, 65, 73, 78, 87, 116, 130, 145, 146, 156, 169, 174, 195, 219, 260, 290, 292, 338, 348, 365, 377, 390, 435, 438, 507, 580, 676, 730, 754, 780, 845, 870, 876, 949, 1014, 1095, 1131, 1460, 1508, 1690, 1740, 1885, 1898, 2028, 2117, 2190, 2262, 2535, 2847, 3380, 3770, 3796, 4234, 4380, 4524, 4745, 4901, 5070, 5655, 5694, 6351, 7540, 8468, 9490, 9802, 10140, 10585, 11310, 11388, 12337, 12702, 14235, 14703, 18980, 19604, 21170, 22620, 24505, 24674, 25404, 27521, 28470, 29406, 31755, 37011, 42340, 49010, 49348, 55042, 56940, 58812, 61685, 63510, 73515, 74022, 82563, 98020, 110084, 123370, 127020, 137605, 147030, 148044, 165126, 185055, 246740, 275210, 294060, 330252, 357773, 370110, 412815, 550420, 715546, 740220, 825630, 1073319, 1431092, 1651260, 1788865, 2146638, 3577730, 4293276, 5366595, 7155460, 10733190, 21466380]

約数ペア:

[(1, 21466380), (2, 10733190), (3, 7155460), (4, 5366595), (5, 4293276), (6, 3577730), (10, 2146638), (12, 1788865), (13, 1651260), (15, 1431092), (20, 1073319), (26, 825630), (29, 740220), (30, 715546), (39, 550420), (52, 412815), (58, 370110), (60, 357773), (65, 330252), (73, 294060), (78, 275210), (87, 246740), (116, 185055), (130, 165126), (145, 148044), (146, 147030), (156, 137605), (169, 127020), (174, 123370), (195, 110084), (219, 98020), (260, 82563), (290, 74022), (292, 73515), (338, 63510), (348, 61685), (365, 58812), (377, 56940), (390, 55042), (435, 49348), (438, 49010), (507, 42340), (580, 37011), (676, 31755), (730, 29406), (754, 28470), (780, 27521), (845, 25404), (870, 24674), (876, 24505), (949, 22620), (1014, 21170), (1095, 19604), (1131, 18980), (1460, 14703), (1508, 14235), (1690, 12702), (1740, 12337), (1885, 11388), (1898, 11310), (2028, 10585), (2117, 10140), (2190, 9802), (2262, 9490), (2535, 8468), (2847, 7540), (3380, 6351), (3770, 5694), (3796, 5655), (4234, 5070), (4380, 4901), (4524, 4745)]