20709108

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:443

約数の個数: 120

約数和(自身を含む): 64724352

約数和(自身を除く): 44015244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 27, 28, 36, 42, 46, 54, 63, 69, 81, 84, 92, 108, 126, 138, 161, 162, 189, 207, 252, 276, 322, 324, 378, 397, 414, 483, 567, 621, 644, 756, 794, 828, 966, 1134, 1191, 1242, 1449, 1588, 1863, 1932, 2268, 2382, 2484, 2779, 2898, 3573, 3726, 4347, 4764, 5558, 5796, 7146, 7452, 8337, 8694, 9131, 10719, 11116, 13041, 14292, 16674, 17388, 18262, 21438, 25011, 26082, 27393, 32157, 33348, 36524, 42876, 50022, 52164, 54786, 63917, 64314, 75033, 82179, 100044, 109572, 127834, 128628, 150066, 164358, 191751, 225099, 246537, 255668, 300132, 328716, 383502, 450198, 493074, 575253, 739611, 767004, 900396, 986148, 1150506, 1479222, 1725759, 2301012, 2958444, 3451518, 5177277, 6903036, 10354554, 20709108]

約数ペア:

[(1, 20709108), (2, 10354554), (3, 6903036), (4, 5177277), (6, 3451518), (7, 2958444), (9, 2301012), (12, 1725759), (14, 1479222), (18, 1150506), (21, 986148), (23, 900396), (27, 767004), (28, 739611), (36, 575253), (42, 493074), (46, 450198), (54, 383502), (63, 328716), (69, 300132), (81, 255668), (84, 246537), (92, 225099), (108, 191751), (126, 164358), (138, 150066), (161, 128628), (162, 127834), (189, 109572), (207, 100044), (252, 82179), (276, 75033), (322, 64314), (324, 63917), (378, 54786), (397, 52164), (414, 50022), (483, 42876), (567, 36524), (621, 33348), (644, 32157), (756, 27393), (794, 26082), (828, 25011), (966, 21438), (1134, 18262), (1191, 17388), (1242, 16674), (1449, 14292), (1588, 13041), (1863, 11116), (1932, 10719), (2268, 9131), (2382, 8694), (2484, 8337), (2779, 7452), (2898, 7146), (3573, 5796), (3726, 5558), (4347, 4764)]