21900186

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 63590400

約数和(自身を除く): 41690214

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 23, 27, 33, 42, 46, 54, 63, 66, 69, 77, 99, 126, 138, 154, 161, 189, 198, 207, 229, 231, 253, 297, 322, 378, 414, 458, 462, 483, 506, 594, 621, 687, 693, 759, 966, 1242, 1374, 1386, 1449, 1518, 1603, 1771, 2061, 2079, 2277, 2519, 2898, 3206, 3542, 4122, 4158, 4347, 4554, 4809, 5038, 5267, 5313, 6183, 6831, 7557, 8694, 9618, 10534, 10626, 12366, 13662, 14427, 15114, 15801, 15939, 17633, 22671, 28854, 31602, 31878, 35266, 36869, 43281, 45342, 47403, 47817, 52899, 57937, 68013, 73738, 86562, 94806, 95634, 105798, 110607, 115874, 136026, 142209, 158697, 173811, 221214, 284418, 317394, 331821, 347622, 405559, 476091, 521433, 663642, 811118, 952182, 995463, 1042866, 1216677, 1564299, 1990926, 2433354, 3128598, 3650031, 7300062, 10950093, 21900186]

約数ペア:

[(1, 21900186), (2, 10950093), (3, 7300062), (6, 3650031), (7, 3128598), (9, 2433354), (11, 1990926), (14, 1564299), (18, 1216677), (21, 1042866), (22, 995463), (23, 952182), (27, 811118), (33, 663642), (42, 521433), (46, 476091), (54, 405559), (63, 347622), (66, 331821), (69, 317394), (77, 284418), (99, 221214), (126, 173811), (138, 158697), (154, 142209), (161, 136026), (189, 115874), (198, 110607), (207, 105798), (229, 95634), (231, 94806), (253, 86562), (297, 73738), (322, 68013), (378, 57937), (414, 52899), (458, 47817), (462, 47403), (483, 45342), (506, 43281), (594, 36869), (621, 35266), (687, 31878), (693, 31602), (759, 28854), (966, 22671), (1242, 17633), (1374, 15939), (1386, 15801), (1449, 15114), (1518, 14427), (1603, 13662), (1771, 12366), (2061, 10626), (2079, 10534), (2277, 9618), (2519, 8694), (2898, 7557), (3206, 6831), (3542, 6183), (4122, 5313), (4158, 5267), (4347, 5038), (4554, 4809)]