21895860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1409}}^1$

素因数の和:1465

約数の個数: 96

約数和(自身を含む): 72011520

約数和(自身を除く): 50115660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 60, 70, 74, 84, 105, 111, 140, 148, 185, 210, 222, 259, 370, 420, 444, 518, 555, 740, 777, 1036, 1110, 1295, 1409, 1554, 2220, 2590, 2818, 3108, 3885, 4227, 5180, 5636, 7045, 7770, 8454, 9863, 14090, 15540, 16908, 19726, 21135, 28180, 29589, 39452, 42270, 49315, 52133, 59178, 84540, 98630, 104266, 118356, 147945, 156399, 197260, 208532, 260665, 295890, 312798, 364931, 521330, 591780, 625596, 729862, 781995, 1042660, 1094793, 1459724, 1563990, 1824655, 2189586, 3127980, 3649310, 4379172, 5473965, 7298620, 10947930, 21895860]

約数ペア:

[(1, 21895860), (2, 10947930), (3, 7298620), (4, 5473965), (5, 4379172), (6, 3649310), (7, 3127980), (10, 2189586), (12, 1824655), (14, 1563990), (15, 1459724), (20, 1094793), (21, 1042660), (28, 781995), (30, 729862), (35, 625596), (37, 591780), (42, 521330), (60, 364931), (70, 312798), (74, 295890), (84, 260665), (105, 208532), (111, 197260), (140, 156399), (148, 147945), (185, 118356), (210, 104266), (222, 98630), (259, 84540), (370, 59178), (420, 52133), (444, 49315), (518, 42270), (555, 39452), (740, 29589), (777, 28180), (1036, 21135), (1110, 19726), (1295, 16908), (1409, 15540), (1554, 14090), (2220, 9863), (2590, 8454), (2818, 7770), (3108, 7045), (3885, 5636), (4227, 5180)]