21052260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:190

約数の個数: 144

約数和(自身を含む): 68468400

約数和(自身を除く): 47416140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 37, 45, 58, 60, 74, 87, 90, 109, 111, 116, 145, 148, 174, 180, 185, 218, 222, 261, 290, 327, 333, 348, 370, 435, 436, 444, 522, 545, 555, 580, 654, 666, 740, 870, 981, 1044, 1073, 1090, 1110, 1305, 1308, 1332, 1635, 1665, 1740, 1962, 2146, 2180, 2220, 2610, 3161, 3219, 3270, 3330, 3924, 4033, 4292, 4905, 5220, 5365, 6322, 6438, 6540, 6660, 8066, 9483, 9657, 9810, 10730, 12099, 12644, 12876, 15805, 16095, 16132, 18966, 19314, 19620, 20165, 21460, 24198, 28449, 31610, 32190, 36297, 37932, 38628, 40330, 47415, 48285, 48396, 56898, 60495, 63220, 64380, 72594, 80660, 94830, 96570, 113796, 116957, 120990, 142245, 145188, 181485, 189660, 193140, 233914, 241980, 284490, 350871, 362970, 467828, 568980, 584785, 701742, 725940, 1052613, 1169570, 1403484, 1754355, 2105226, 2339140, 3508710, 4210452, 5263065, 7017420, 10526130, 21052260]

約数ペア:

[(1, 21052260), (2, 10526130), (3, 7017420), (4, 5263065), (5, 4210452), (6, 3508710), (9, 2339140), (10, 2105226), (12, 1754355), (15, 1403484), (18, 1169570), (20, 1052613), (29, 725940), (30, 701742), (36, 584785), (37, 568980), (45, 467828), (58, 362970), (60, 350871), (74, 284490), (87, 241980), (90, 233914), (109, 193140), (111, 189660), (116, 181485), (145, 145188), (148, 142245), (174, 120990), (180, 116957), (185, 113796), (218, 96570), (222, 94830), (261, 80660), (290, 72594), (327, 64380), (333, 63220), (348, 60495), (370, 56898), (435, 48396), (436, 48285), (444, 47415), (522, 40330), (545, 38628), (555, 37932), (580, 36297), (654, 32190), (666, 31610), (740, 28449), (870, 24198), (981, 21460), (1044, 20165), (1073, 19620), (1090, 19314), (1110, 18966), (1305, 16132), (1308, 16095), (1332, 15805), (1635, 12876), (1665, 12644), (1740, 12099), (1962, 10730), (2146, 9810), (2180, 9657), (2220, 9483), (2610, 8066), (3161, 6660), (3219, 6540), (3270, 6438), (3330, 6322), (3924, 5365), (4033, 5220), (4292, 4905)]