21764820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{673}}^1$

素因数の和:710

約数の個数: 144

約数和(自身を含む): 77450688

約数和(自身を除く): 55685868

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 49, 55, 60, 66, 70, 77, 84, 98, 105, 110, 132, 140, 147, 154, 165, 196, 210, 220, 231, 245, 294, 308, 330, 385, 420, 462, 490, 539, 588, 660, 673, 735, 770, 924, 980, 1078, 1155, 1346, 1470, 1540, 1617, 2019, 2156, 2310, 2692, 2695, 2940, 3234, 3365, 4038, 4620, 4711, 5390, 6468, 6730, 7403, 8076, 8085, 9422, 10095, 10780, 13460, 14133, 14806, 16170, 18844, 20190, 22209, 23555, 28266, 29612, 32340, 32977, 37015, 40380, 44418, 47110, 51821, 56532, 65954, 70665, 74030, 88836, 94220, 98931, 103642, 111045, 131908, 141330, 148060, 155463, 164885, 197862, 207284, 222090, 259105, 282660, 310926, 329770, 362747, 395724, 444180, 494655, 518210, 621852, 659540, 725494, 777315, 989310, 1036420, 1088241, 1450988, 1554630, 1813735, 1978620, 2176482, 3109260, 3627470, 4352964, 5441205, 7254940, 10882410, 21764820]

約数ペア:

[(1, 21764820), (2, 10882410), (3, 7254940), (4, 5441205), (5, 4352964), (6, 3627470), (7, 3109260), (10, 2176482), (11, 1978620), (12, 1813735), (14, 1554630), (15, 1450988), (20, 1088241), (21, 1036420), (22, 989310), (28, 777315), (30, 725494), (33, 659540), (35, 621852), (42, 518210), (44, 494655), (49, 444180), (55, 395724), (60, 362747), (66, 329770), (70, 310926), (77, 282660), (84, 259105), (98, 222090), (105, 207284), (110, 197862), (132, 164885), (140, 155463), (147, 148060), (154, 141330), (165, 131908), (196, 111045), (210, 103642), (220, 98931), (231, 94220), (245, 88836), (294, 74030), (308, 70665), (330, 65954), (385, 56532), (420, 51821), (462, 47110), (490, 44418), (539, 40380), (588, 37015), (660, 32977), (673, 32340), (735, 29612), (770, 28266), (924, 23555), (980, 22209), (1078, 20190), (1155, 18844), (1346, 16170), (1470, 14806), (1540, 14133), (1617, 13460), (2019, 10780), (2156, 10095), (2310, 9422), (2692, 8085), (2695, 8076), (2940, 7403), (3234, 6730), (3365, 6468), (4038, 5390), (4620, 4711)]