21937020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2749}}^1$

素因数の和:2787

約数の個数: 96

約数和(自身を含む): 73920000

約数和(自身を除く): 51982980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 2749, 3990, 5498, 7980, 8247, 10996, 13745, 16494, 19243, 27490, 32988, 38486, 41235, 52231, 54980, 57729, 76972, 82470, 96215, 104462, 115458, 156693, 164940, 192430, 208924, 230916, 261155, 288645, 313386, 365617, 384860, 522310, 577290, 626772, 731234, 783465, 1044620, 1096851, 1154580, 1462468, 1566930, 1828085, 2193702, 3133860, 3656170, 4387404, 5484255, 7312340, 10968510, 21937020]

約数ペア:

[(1, 21937020), (2, 10968510), (3, 7312340), (4, 5484255), (5, 4387404), (6, 3656170), (7, 3133860), (10, 2193702), (12, 1828085), (14, 1566930), (15, 1462468), (19, 1154580), (20, 1096851), (21, 1044620), (28, 783465), (30, 731234), (35, 626772), (38, 577290), (42, 522310), (57, 384860), (60, 365617), (70, 313386), (76, 288645), (84, 261155), (95, 230916), (105, 208924), (114, 192430), (133, 164940), (140, 156693), (190, 115458), (210, 104462), (228, 96215), (266, 82470), (285, 76972), (380, 57729), (399, 54980), (420, 52231), (532, 41235), (570, 38486), (665, 32988), (798, 27490), (1140, 19243), (1330, 16494), (1596, 13745), (1995, 10996), (2660, 8247), (2749, 7980), (3990, 5498)]