21888608

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 96

約数和(自身を含む): 53625600

約数和(自身を除く): 31736992

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 37, 38, 56, 74, 76, 112, 133, 139, 148, 152, 224, 259, 266, 278, 296, 304, 518, 532, 556, 592, 608, 703, 973, 1036, 1064, 1112, 1184, 1406, 1946, 2072, 2128, 2224, 2641, 2812, 3892, 4144, 4256, 4448, 4921, 5143, 5282, 5624, 7784, 8288, 9842, 10286, 10564, 11248, 15568, 18487, 19684, 20572, 21128, 22496, 31136, 36001, 36974, 39368, 41144, 42256, 72002, 73948, 78736, 82288, 84512, 97717, 144004, 147896, 157472, 164576, 195434, 288008, 295792, 390868, 576016, 591584, 684019, 781736, 1152032, 1368038, 1563472, 2736076, 3126944, 5472152, 10944304, 21888608]

約数ペア:

[(1, 21888608), (2, 10944304), (4, 5472152), (7, 3126944), (8, 2736076), (14, 1563472), (16, 1368038), (19, 1152032), (28, 781736), (32, 684019), (37, 591584), (38, 576016), (56, 390868), (74, 295792), (76, 288008), (112, 195434), (133, 164576), (139, 157472), (148, 147896), (152, 144004), (224, 97717), (259, 84512), (266, 82288), (278, 78736), (296, 73948), (304, 72002), (518, 42256), (532, 41144), (556, 39368), (592, 36974), (608, 36001), (703, 31136), (973, 22496), (1036, 21128), (1064, 20572), (1112, 19684), (1184, 18487), (1406, 15568), (1946, 11248), (2072, 10564), (2128, 10286), (2224, 9842), (2641, 8288), (2812, 7784), (3892, 5624), (4144, 5282), (4256, 5143), (4448, 4921)]