21872340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17359}}^1$

素因数の和:17381

約数の個数: 72

約数和(自身を含む): 75828480

約数和(自身を除く): 53956140

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, 17359, 34718, 52077, 69436, 86795, 104154, 121513, 156231, 173590, 208308, 243026, 260385, 312462, 347180, 364539, 486052, 520770, 607565, 624924, 729078, 781155, 1041540, 1093617, 1215130, 1458156, 1562310, 1822695, 2187234, 2430260, 3124620, 3645390, 4374468, 5468085, 7290780, 10936170, 21872340]

約数ペア:

[(1, 21872340), (2, 10936170), (3, 7290780), (4, 5468085), (5, 4374468), (6, 3645390), (7, 3124620), (9, 2430260), (10, 2187234), (12, 1822695), (14, 1562310), (15, 1458156), (18, 1215130), (20, 1093617), (21, 1041540), (28, 781155), (30, 729078), (35, 624924), (36, 607565), (42, 520770), (45, 486052), (60, 364539), (63, 347180), (70, 312462), (84, 260385), (90, 243026), (105, 208308), (126, 173590), (140, 156231), (180, 121513), (210, 104154), (252, 86795), (315, 69436), (420, 52077), (630, 34718), (1260, 17359)]