19884984

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{457}}^1$

素因数の和:517

約数の個数: 96

約数和(自身を含む): 59521680

約数和(自身を除く): 39636696

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 49, 56, 74, 84, 98, 111, 147, 148, 168, 196, 222, 259, 294, 296, 392, 444, 457, 518, 588, 777, 888, 914, 1036, 1176, 1371, 1554, 1813, 1828, 2072, 2742, 3108, 3199, 3626, 3656, 5439, 5484, 6216, 6398, 7252, 9597, 10878, 10968, 12796, 14504, 16909, 19194, 21756, 22393, 25592, 33818, 38388, 43512, 44786, 50727, 67179, 67636, 76776, 89572, 101454, 118363, 134358, 135272, 179144, 202908, 236726, 268716, 355089, 405816, 473452, 537432, 710178, 828541, 946904, 1420356, 1657082, 2485623, 2840712, 3314164, 4971246, 6628328, 9942492, 19884984]

約数ペア:

[(1, 19884984), (2, 9942492), (3, 6628328), (4, 4971246), (6, 3314164), (7, 2840712), (8, 2485623), (12, 1657082), (14, 1420356), (21, 946904), (24, 828541), (28, 710178), (37, 537432), (42, 473452), (49, 405816), (56, 355089), (74, 268716), (84, 236726), (98, 202908), (111, 179144), (147, 135272), (148, 134358), (168, 118363), (196, 101454), (222, 89572), (259, 76776), (294, 67636), (296, 67179), (392, 50727), (444, 44786), (457, 43512), (518, 38388), (588, 33818), (777, 25592), (888, 22393), (914, 21756), (1036, 19194), (1176, 16909), (1371, 14504), (1554, 12796), (1813, 10968), (1828, 10878), (2072, 9597), (2742, 7252), (3108, 6398), (3199, 6216), (3626, 5484), (3656, 5439)]