21108360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1933}}^1$

素因数の和:1967

約数の個数: 128

約数和(自身を含む): 77978880

約数和(自身を除く): 56870520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 1933, 2184, 2730, 3640, 3866, 5460, 5799, 7732, 9665, 10920, 11598, 13531, 15464, 19330, 23196, 25129, 27062, 28995, 38660, 40593, 46392, 50258, 54124, 57990, 67655, 75387, 77320, 81186, 100516, 108248, 115980, 125645, 135310, 150774, 162372, 175903, 201032, 202965, 231960, 251290, 270620, 301548, 324744, 351806, 376935, 405930, 502580, 527709, 541240, 603096, 703612, 753870, 811860, 879515, 1005160, 1055418, 1407224, 1507740, 1623720, 1759030, 2110836, 2638545, 3015480, 3518060, 4221672, 5277090, 7036120, 10554180, 21108360]

約数ペア:

[(1, 21108360), (2, 10554180), (3, 7036120), (4, 5277090), (5, 4221672), (6, 3518060), (7, 3015480), (8, 2638545), (10, 2110836), (12, 1759030), (13, 1623720), (14, 1507740), (15, 1407224), (20, 1055418), (21, 1005160), (24, 879515), (26, 811860), (28, 753870), (30, 703612), (35, 603096), (39, 541240), (40, 527709), (42, 502580), (52, 405930), (56, 376935), (60, 351806), (65, 324744), (70, 301548), (78, 270620), (84, 251290), (91, 231960), (104, 202965), (105, 201032), (120, 175903), (130, 162372), (140, 150774), (156, 135310), (168, 125645), (182, 115980), (195, 108248), (210, 100516), (260, 81186), (273, 77320), (280, 75387), (312, 67655), (364, 57990), (390, 54124), (420, 50258), (455, 46392), (520, 40593), (546, 38660), (728, 28995), (780, 27062), (840, 25129), (910, 23196), (1092, 19330), (1365, 15464), (1560, 13531), (1820, 11598), (1933, 10920), (2184, 9665), (2730, 7732), (3640, 5799), (3866, 5460)]