21922740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 77156352

約数和(自身を除く): 55233612

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 127, 137, 140, 180, 210, 252, 254, 274, 315, 381, 411, 420, 508, 548, 630, 635, 685, 762, 822, 889, 959, 1143, 1233, 1260, 1270, 1370, 1524, 1644, 1778, 1905, 1918, 2055, 2286, 2466, 2540, 2667, 2740, 2877, 3556, 3810, 3836, 4110, 4445, 4572, 4795, 4932, 5334, 5715, 5754, 6165, 7620, 8001, 8220, 8631, 8890, 9590, 10668, 11430, 11508, 12330, 13335, 14385, 16002, 17262, 17399, 17780, 19180, 22860, 24660, 26670, 28770, 32004, 34524, 34798, 40005, 43155, 52197, 53340, 57540, 69596, 80010, 86310, 86995, 104394, 121793, 156591, 160020, 172620, 173990, 208788, 243586, 260985, 313182, 347980, 365379, 487172, 521970, 608965, 626364, 730758, 782955, 1043940, 1096137, 1217930, 1461516, 1565910, 1826895, 2192274, 2435860, 3131820, 3653790, 4384548, 5480685, 7307580, 10961370, 21922740]

約数ペア:

[(1, 21922740), (2, 10961370), (3, 7307580), (4, 5480685), (5, 4384548), (6, 3653790), (7, 3131820), (9, 2435860), (10, 2192274), (12, 1826895), (14, 1565910), (15, 1461516), (18, 1217930), (20, 1096137), (21, 1043940), (28, 782955), (30, 730758), (35, 626364), (36, 608965), (42, 521970), (45, 487172), (60, 365379), (63, 347980), (70, 313182), (84, 260985), (90, 243586), (105, 208788), (126, 173990), (127, 172620), (137, 160020), (140, 156591), (180, 121793), (210, 104394), (252, 86995), (254, 86310), (274, 80010), (315, 69596), (381, 57540), (411, 53340), (420, 52197), (508, 43155), (548, 40005), (630, 34798), (635, 34524), (685, 32004), (762, 28770), (822, 26670), (889, 24660), (959, 22860), (1143, 19180), (1233, 17780), (1260, 17399), (1270, 17262), (1370, 16002), (1524, 14385), (1644, 13335), (1778, 12330), (1905, 11508), (1918, 11430), (2055, 10668), (2286, 9590), (2466, 8890), (2540, 8631), (2667, 8220), (2740, 8001), (2877, 7620), (3556, 6165), (3810, 5754), (3836, 5715), (4110, 5334), (4445, 4932), (4572, 4795)]