21283080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1949}}^1$

素因数の和:1983

約数の個数: 128

約数和(自身を含む): 78624000

約数和(自身を除く): 57340920

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, 1949, 2184, 2730, 3640, 3898, 5460, 5847, 7796, 9745, 10920, 11694, 13643, 15592, 19490, 23388, 25337, 27286, 29235, 38980, 40929, 46776, 50674, 54572, 58470, 68215, 76011, 77960, 81858, 101348, 109144, 116940, 126685, 136430, 152022, 163716, 177359, 202696, 204645, 233880, 253370, 272860, 304044, 327432, 354718, 380055, 409290, 506740, 532077, 545720, 608088, 709436, 760110, 818580, 886795, 1013480, 1064154, 1418872, 1520220, 1637160, 1773590, 2128308, 2660385, 3040440, 3547180, 4256616, 5320770, 7094360, 10641540, 21283080]

約数ペア:

[(1, 21283080), (2, 10641540), (3, 7094360), (4, 5320770), (5, 4256616), (6, 3547180), (7, 3040440), (8, 2660385), (10, 2128308), (12, 1773590), (13, 1637160), (14, 1520220), (15, 1418872), (20, 1064154), (21, 1013480), (24, 886795), (26, 818580), (28, 760110), (30, 709436), (35, 608088), (39, 545720), (40, 532077), (42, 506740), (52, 409290), (56, 380055), (60, 354718), (65, 327432), (70, 304044), (78, 272860), (84, 253370), (91, 233880), (104, 204645), (105, 202696), (120, 177359), (130, 163716), (140, 152022), (156, 136430), (168, 126685), (182, 116940), (195, 109144), (210, 101348), (260, 81858), (273, 77960), (280, 76011), (312, 68215), (364, 58470), (390, 54572), (420, 50674), (455, 46776), (520, 40929), (546, 38980), (728, 29235), (780, 27286), (840, 25337), (910, 23388), (1092, 19490), (1365, 15592), (1560, 13643), (1820, 11694), (1949, 10920), (2184, 9745), (2730, 7796), (3640, 5847), (3898, 5460)]