21439404

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:186

約数の個数: 144

約数和(自身を含む): 67511808

約数和(自身を除く): 46072404

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, 137, 138, 161, 162, 189, 207, 243, 252, 274, 276, 322, 324, 378, 411, 414, 483, 486, 548, 567, 621, 644, 756, 822, 828, 959, 966, 972, 1134, 1233, 1242, 1449, 1644, 1701, 1863, 1918, 1932, 2268, 2466, 2484, 2877, 2898, 3151, 3402, 3699, 3726, 3836, 4347, 4932, 5589, 5754, 5796, 6302, 6804, 7398, 7452, 8631, 8694, 9453, 11097, 11178, 11508, 12604, 13041, 14796, 17262, 17388, 18906, 22057, 22194, 22356, 25893, 26082, 28359, 33291, 34524, 37812, 39123, 44114, 44388, 51786, 52164, 56718, 66171, 66582, 77679, 78246, 85077, 88228, 103572, 113436, 132342, 133164, 155358, 156492, 170154, 198513, 233037, 255231, 264684, 310716, 340308, 397026, 466074, 510462, 595539, 765693, 794052, 932148, 1020924, 1191078, 1531386, 1786617, 2382156, 3062772, 3573234, 5359851, 7146468, 10719702, 21439404]

約数ペア:

[(1, 21439404), (2, 10719702), (3, 7146468), (4, 5359851), (6, 3573234), (7, 3062772), (9, 2382156), (12, 1786617), (14, 1531386), (18, 1191078), (21, 1020924), (23, 932148), (27, 794052), (28, 765693), (36, 595539), (42, 510462), (46, 466074), (54, 397026), (63, 340308), (69, 310716), (81, 264684), (84, 255231), (92, 233037), (108, 198513), (126, 170154), (137, 156492), (138, 155358), (161, 133164), (162, 132342), (189, 113436), (207, 103572), (243, 88228), (252, 85077), (274, 78246), (276, 77679), (322, 66582), (324, 66171), (378, 56718), (411, 52164), (414, 51786), (483, 44388), (486, 44114), (548, 39123), (567, 37812), (621, 34524), (644, 33291), (756, 28359), (822, 26082), (828, 25893), (959, 22356), (966, 22194), (972, 22057), (1134, 18906), (1233, 17388), (1242, 17262), (1449, 14796), (1644, 13041), (1701, 12604), (1863, 11508), (1918, 11178), (1932, 11097), (2268, 9453), (2466, 8694), (2484, 8631), (2877, 7452), (2898, 7398), (3151, 6804), (3402, 6302), (3699, 5796), (3726, 5754), (3836, 5589), (4347, 4932)]