21153496

素因数分解:

$2^3\times 7^3\times {\mathrm{13}}^1\times {\mathrm{593}}^1$

素因数の和:633

約数の個数: 64

約数和(自身を含む): 49896000

約数和(自身を除く): 28742504

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 343, 364, 392, 593, 637, 686, 728, 1186, 1274, 1372, 2372, 2548, 2744, 4151, 4459, 4744, 5096, 7709, 8302, 8918, 15418, 16604, 17836, 29057, 30836, 33208, 35672, 53963, 58114, 61672, 107926, 116228, 203399, 215852, 232456, 377741, 406798, 431704, 755482, 813596, 1510964, 1627192, 2644187, 3021928, 5288374, 10576748, 21153496]

約数ペア:

[(1, 21153496), (2, 10576748), (4, 5288374), (7, 3021928), (8, 2644187), (13, 1627192), (14, 1510964), (26, 813596), (28, 755482), (49, 431704), (52, 406798), (56, 377741), (91, 232456), (98, 215852), (104, 203399), (182, 116228), (196, 107926), (343, 61672), (364, 58114), (392, 53963), (593, 35672), (637, 33208), (686, 30836), (728, 29057), (1186, 17836), (1274, 16604), (1372, 15418), (2372, 8918), (2548, 8302), (2744, 7709), (4151, 5096), (4459, 4744)]