21238740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1063}}^1$

素因数の和:1118

約数の個数: 96

約数和(自身を含む): 67925760

約数和(自身を除く): 46687020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 45, 54, 60, 74, 90, 108, 111, 135, 148, 180, 185, 222, 270, 333, 370, 444, 540, 555, 666, 740, 999, 1063, 1110, 1332, 1665, 1998, 2126, 2220, 3189, 3330, 3996, 4252, 4995, 5315, 6378, 6660, 9567, 9990, 10630, 12756, 15945, 19134, 19980, 21260, 28701, 31890, 38268, 39331, 47835, 57402, 63780, 78662, 95670, 114804, 117993, 143505, 157324, 191340, 196655, 235986, 287010, 353979, 393310, 471972, 574020, 589965, 707958, 786620, 1061937, 1179930, 1415916, 1769895, 2123874, 2359860, 3539790, 4247748, 5309685, 7079580, 10619370, 21238740]

約数ペア:

[(1, 21238740), (2, 10619370), (3, 7079580), (4, 5309685), (5, 4247748), (6, 3539790), (9, 2359860), (10, 2123874), (12, 1769895), (15, 1415916), (18, 1179930), (20, 1061937), (27, 786620), (30, 707958), (36, 589965), (37, 574020), (45, 471972), (54, 393310), (60, 353979), (74, 287010), (90, 235986), (108, 196655), (111, 191340), (135, 157324), (148, 143505), (180, 117993), (185, 114804), (222, 95670), (270, 78662), (333, 63780), (370, 57402), (444, 47835), (540, 39331), (555, 38268), (666, 31890), (740, 28701), (999, 21260), (1063, 19980), (1110, 19134), (1332, 15945), (1665, 12756), (1998, 10630), (2126, 9990), (2220, 9567), (3189, 6660), (3330, 6378), (3996, 5315), (4252, 4995)]