21337380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1$

素因数の和:418

約数の個数: 144

約数和(自身を含む): 72334080

約数和(自身を除く): 50996700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 51, 57, 60, 68, 76, 85, 90, 95, 102, 114, 153, 170, 171, 180, 190, 204, 228, 255, 285, 306, 323, 340, 342, 367, 380, 510, 570, 612, 646, 684, 734, 765, 855, 969, 1020, 1101, 1140, 1292, 1468, 1530, 1615, 1710, 1835, 1938, 2202, 2907, 3060, 3230, 3303, 3420, 3670, 3876, 4404, 4845, 5505, 5814, 6239, 6460, 6606, 6973, 7340, 9690, 11010, 11628, 12478, 13212, 13946, 14535, 16515, 18717, 19380, 20919, 22020, 24956, 27892, 29070, 31195, 33030, 34865, 37434, 41838, 56151, 58140, 62390, 62757, 66060, 69730, 74868, 83676, 93585, 104595, 112302, 118541, 124780, 125514, 139460, 187170, 209190, 224604, 237082, 251028, 280755, 313785, 355623, 374340, 418380, 474164, 561510, 592705, 627570, 711246, 1066869, 1123020, 1185410, 1255140, 1422492, 1778115, 2133738, 2370820, 3556230, 4267476, 5334345, 7112460, 10668690, 21337380]

約数ペア:

[(1, 21337380), (2, 10668690), (3, 7112460), (4, 5334345), (5, 4267476), (6, 3556230), (9, 2370820), (10, 2133738), (12, 1778115), (15, 1422492), (17, 1255140), (18, 1185410), (19, 1123020), (20, 1066869), (30, 711246), (34, 627570), (36, 592705), (38, 561510), (45, 474164), (51, 418380), (57, 374340), (60, 355623), (68, 313785), (76, 280755), (85, 251028), (90, 237082), (95, 224604), (102, 209190), (114, 187170), (153, 139460), (170, 125514), (171, 124780), (180, 118541), (190, 112302), (204, 104595), (228, 93585), (255, 83676), (285, 74868), (306, 69730), (323, 66060), (340, 62757), (342, 62390), (367, 58140), (380, 56151), (510, 41838), (570, 37434), (612, 34865), (646, 33030), (684, 31195), (734, 29070), (765, 27892), (855, 24956), (969, 22020), (1020, 20919), (1101, 19380), (1140, 18717), (1292, 16515), (1468, 14535), (1530, 13946), (1615, 13212), (1710, 12478), (1835, 11628), (1938, 11010), (2202, 9690), (2907, 7340), (3060, 6973), (3230, 6606), (3303, 6460), (3420, 6239), (3670, 5814), (3876, 5505), (4404, 4845)]