21087660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:471

約数の個数: 96

約数和(自身を含む): 65318400

約数和(自身を除く): 44230740

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 89, 110, 132, 165, 178, 220, 267, 330, 356, 359, 445, 534, 660, 718, 890, 979, 1068, 1077, 1335, 1436, 1780, 1795, 1958, 2154, 2670, 2937, 3590, 3916, 3949, 4308, 4895, 5340, 5385, 5874, 7180, 7898, 9790, 10770, 11748, 11847, 14685, 15796, 19580, 19745, 21540, 23694, 29370, 31951, 39490, 47388, 58740, 59235, 63902, 78980, 95853, 118470, 127804, 159755, 191706, 236940, 319510, 351461, 383412, 479265, 639020, 702922, 958530, 1054383, 1405844, 1757305, 1917060, 2108766, 3514610, 4217532, 5271915, 7029220, 10543830, 21087660]

約数ペア:

[(1, 21087660), (2, 10543830), (3, 7029220), (4, 5271915), (5, 4217532), (6, 3514610), (10, 2108766), (11, 1917060), (12, 1757305), (15, 1405844), (20, 1054383), (22, 958530), (30, 702922), (33, 639020), (44, 479265), (55, 383412), (60, 351461), (66, 319510), (89, 236940), (110, 191706), (132, 159755), (165, 127804), (178, 118470), (220, 95853), (267, 78980), (330, 63902), (356, 59235), (359, 58740), (445, 47388), (534, 39490), (660, 31951), (718, 29370), (890, 23694), (979, 21540), (1068, 19745), (1077, 19580), (1335, 15796), (1436, 14685), (1780, 11847), (1795, 11748), (1958, 10770), (2154, 9790), (2670, 7898), (2937, 7180), (3590, 5874), (3916, 5385), (3949, 5340), (4308, 4895)]