21869120

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{751}}^1$

素因数の和:788

約数の個数: 112

約数和(自身を含む): 64178688

約数和(自身を除く): 42309568

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 728, 751, 832, 910, 1040, 1120, 1456, 1502, 1820, 2080, 2240, 2912, 3004, 3640, 3755, 4160, 5257, 5824, 6008, 7280, 7510, 9763, 10514, 12016, 14560, 15020, 19526, 21028, 24032, 26285, 29120, 30040, 39052, 42056, 48064, 48815, 52570, 60080, 68341, 78104, 84112, 97630, 105140, 120160, 136682, 156208, 168224, 195260, 210280, 240320, 273364, 312416, 336448, 341705, 390520, 420560, 546728, 624832, 683410, 781040, 841120, 1093456, 1366820, 1562080, 1682240, 2186912, 2733640, 3124160, 4373824, 5467280, 10934560, 21869120]

約数ペア:

[(1, 21869120), (2, 10934560), (4, 5467280), (5, 4373824), (7, 3124160), (8, 2733640), (10, 2186912), (13, 1682240), (14, 1562080), (16, 1366820), (20, 1093456), (26, 841120), (28, 781040), (32, 683410), (35, 624832), (40, 546728), (52, 420560), (56, 390520), (64, 341705), (65, 336448), (70, 312416), (80, 273364), (91, 240320), (104, 210280), (112, 195260), (130, 168224), (140, 156208), (160, 136682), (182, 120160), (208, 105140), (224, 97630), (260, 84112), (280, 78104), (320, 68341), (364, 60080), (416, 52570), (448, 48815), (455, 48064), (520, 42056), (560, 39052), (728, 30040), (751, 29120), (832, 26285), (910, 24032), (1040, 21028), (1120, 19526), (1456, 15020), (1502, 14560), (1820, 12016), (2080, 10514), (2240, 9763), (2912, 7510), (3004, 7280), (3640, 6008), (3755, 5824), (4160, 5257)]