21704340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1667}}^1$

素因数の和:1717

約数の個数: 96

約数和(自身を含む): 71737344

約数和(自身を除く): 50033004

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1667, 1860, 2170, 2604, 3255, 3334, 4340, 5001, 6510, 6668, 8335, 10002, 11669, 13020, 16670, 20004, 23338, 25005, 33340, 35007, 46676, 50010, 51677, 58345, 70014, 100020, 103354, 116690, 140028, 155031, 175035, 206708, 233380, 258385, 310062, 350070, 361739, 516770, 620124, 700140, 723478, 775155, 1033540, 1085217, 1446956, 1550310, 1808695, 2170434, 3100620, 3617390, 4340868, 5426085, 7234780, 10852170, 21704340]

約数ペア:

[(1, 21704340), (2, 10852170), (3, 7234780), (4, 5426085), (5, 4340868), (6, 3617390), (7, 3100620), (10, 2170434), (12, 1808695), (14, 1550310), (15, 1446956), (20, 1085217), (21, 1033540), (28, 775155), (30, 723478), (31, 700140), (35, 620124), (42, 516770), (60, 361739), (62, 350070), (70, 310062), (84, 258385), (93, 233380), (105, 206708), (124, 175035), (140, 155031), (155, 140028), (186, 116690), (210, 103354), (217, 100020), (310, 70014), (372, 58345), (420, 51677), (434, 50010), (465, 46676), (620, 35007), (651, 33340), (868, 25005), (930, 23338), (1085, 20004), (1302, 16670), (1667, 13020), (1860, 11669), (2170, 10002), (2604, 8335), (3255, 6668), (3334, 6510), (4340, 5001)]