21566880

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{881}}^1$

素因数の和:919

約数の個数: 144

約数和(自身を含む): 78014664

約数和(自身を除く): 56447784

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 96, 102, 120, 136, 144, 153, 160, 170, 180, 204, 240, 255, 272, 288, 306, 340, 360, 408, 480, 510, 544, 612, 680, 720, 765, 816, 881, 1020, 1224, 1360, 1440, 1530, 1632, 1762, 2040, 2448, 2643, 2720, 3060, 3524, 4080, 4405, 4896, 5286, 6120, 7048, 7929, 8160, 8810, 10572, 12240, 13215, 14096, 14977, 15858, 17620, 21144, 24480, 26430, 28192, 29954, 31716, 35240, 39645, 42288, 44931, 52860, 59908, 63432, 70480, 74885, 79290, 84576, 89862, 105720, 119816, 126864, 134793, 140960, 149770, 158580, 179724, 211440, 224655, 239632, 253728, 269586, 299540, 317160, 359448, 422880, 449310, 479264, 539172, 599080, 634320, 673965, 718896, 898620, 1078344, 1198160, 1268640, 1347930, 1437792, 1797240, 2156688, 2396320, 2695860, 3594480, 4313376, 5391720, 7188960, 10783440, 21566880]

約数ペア:

[(1, 21566880), (2, 10783440), (3, 7188960), (4, 5391720), (5, 4313376), (6, 3594480), (8, 2695860), (9, 2396320), (10, 2156688), (12, 1797240), (15, 1437792), (16, 1347930), (17, 1268640), (18, 1198160), (20, 1078344), (24, 898620), (30, 718896), (32, 673965), (34, 634320), (36, 599080), (40, 539172), (45, 479264), (48, 449310), (51, 422880), (60, 359448), (68, 317160), (72, 299540), (80, 269586), (85, 253728), (90, 239632), (96, 224655), (102, 211440), (120, 179724), (136, 158580), (144, 149770), (153, 140960), (160, 134793), (170, 126864), (180, 119816), (204, 105720), (240, 89862), (255, 84576), (272, 79290), (288, 74885), (306, 70480), (340, 63432), (360, 59908), (408, 52860), (480, 44931), (510, 42288), (544, 39645), (612, 35240), (680, 31716), (720, 29954), (765, 28192), (816, 26430), (881, 24480), (1020, 21144), (1224, 17620), (1360, 15858), (1440, 14977), (1530, 14096), (1632, 13215), (1762, 12240), (2040, 10572), (2448, 8810), (2643, 8160), (2720, 7929), (3060, 7048), (3524, 6120), (4080, 5286), (4405, 4896)]