19956888

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:286

約数の個数: 128

約数和(自身を含む): 64627200

約数和(自身を除く): 44670312

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 67, 72, 84, 108, 126, 134, 168, 189, 197, 201, 216, 252, 268, 378, 394, 402, 469, 504, 536, 591, 603, 756, 788, 804, 938, 1182, 1206, 1379, 1407, 1512, 1576, 1608, 1773, 1809, 1876, 2364, 2412, 2758, 2814, 3546, 3618, 3752, 4137, 4221, 4728, 4824, 5319, 5516, 5628, 7092, 7236, 8274, 8442, 10638, 11032, 11256, 12411, 12663, 13199, 14184, 14472, 16548, 16884, 21276, 24822, 25326, 26398, 33096, 33768, 37233, 39597, 42552, 49644, 50652, 52796, 74466, 79194, 92393, 99288, 101304, 105592, 118791, 148932, 158388, 184786, 237582, 277179, 297864, 316776, 356373, 369572, 475164, 554358, 712746, 739144, 831537, 950328, 1108716, 1425492, 1663074, 2217432, 2494611, 2850984, 3326148, 4989222, 6652296, 9978444, 19956888]

約数ペア:

[(1, 19956888), (2, 9978444), (3, 6652296), (4, 4989222), (6, 3326148), (7, 2850984), (8, 2494611), (9, 2217432), (12, 1663074), (14, 1425492), (18, 1108716), (21, 950328), (24, 831537), (27, 739144), (28, 712746), (36, 554358), (42, 475164), (54, 369572), (56, 356373), (63, 316776), (67, 297864), (72, 277179), (84, 237582), (108, 184786), (126, 158388), (134, 148932), (168, 118791), (189, 105592), (197, 101304), (201, 99288), (216, 92393), (252, 79194), (268, 74466), (378, 52796), (394, 50652), (402, 49644), (469, 42552), (504, 39597), (536, 37233), (591, 33768), (603, 33096), (756, 26398), (788, 25326), (804, 24822), (938, 21276), (1182, 16884), (1206, 16548), (1379, 14472), (1407, 14184), (1512, 13199), (1576, 12663), (1608, 12411), (1773, 11256), (1809, 11032), (1876, 10638), (2364, 8442), (2412, 8274), (2758, 7236), (2814, 7092), (3546, 5628), (3618, 5516), (3752, 5319), (4137, 4824), (4221, 4728)]