21069120

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1291}}^1$

素因数の和:1328

約数の個数: 112

約数和(自身を含む): 70884288

約数和(自身を除く): 49815168

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 408, 480, 510, 544, 680, 816, 960, 1020, 1088, 1291, 1360, 1632, 2040, 2582, 2720, 3264, 3873, 4080, 5164, 5440, 6455, 7746, 8160, 10328, 12910, 15492, 16320, 19365, 20656, 21947, 25820, 30984, 38730, 41312, 43894, 51640, 61968, 65841, 77460, 82624, 87788, 103280, 109735, 123936, 131682, 154920, 175576, 206560, 219470, 247872, 263364, 309840, 329205, 351152, 413120, 438940, 526728, 619680, 658410, 702304, 877880, 1053456, 1239360, 1316820, 1404608, 1755760, 2106912, 2633640, 3511520, 4213824, 5267280, 7023040, 10534560, 21069120]

約数ペア:

[(1, 21069120), (2, 10534560), (3, 7023040), (4, 5267280), (5, 4213824), (6, 3511520), (8, 2633640), (10, 2106912), (12, 1755760), (15, 1404608), (16, 1316820), (17, 1239360), (20, 1053456), (24, 877880), (30, 702304), (32, 658410), (34, 619680), (40, 526728), (48, 438940), (51, 413120), (60, 351152), (64, 329205), (68, 309840), (80, 263364), (85, 247872), (96, 219470), (102, 206560), (120, 175576), (136, 154920), (160, 131682), (170, 123936), (192, 109735), (204, 103280), (240, 87788), (255, 82624), (272, 77460), (320, 65841), (340, 61968), (408, 51640), (480, 43894), (510, 41312), (544, 38730), (680, 30984), (816, 25820), (960, 21947), (1020, 20656), (1088, 19365), (1291, 16320), (1360, 15492), (1632, 12910), (2040, 10328), (2582, 8160), (2720, 7746), (3264, 6455), (3873, 5440), (4080, 5164)]