19897185

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:163

約数の個数: 96

約数和(自身を含む): 42550272

約数和(自身を除く): 22653087

約数列:

[1, 3, 5, 7, 11, 15, 21, 23, 33, 35, 49, 55, 69, 77, 105, 107, 115, 147, 161, 165, 231, 245, 253, 321, 345, 385, 483, 535, 539, 735, 749, 759, 805, 1127, 1155, 1177, 1265, 1605, 1617, 1771, 2247, 2415, 2461, 2695, 3381, 3531, 3745, 3795, 5243, 5313, 5635, 5885, 7383, 8085, 8239, 8855, 11235, 12305, 12397, 15729, 16905, 17227, 17655, 24717, 26215, 26565, 27071, 36915, 37191, 41195, 51681, 57673, 61985, 78645, 81213, 86135, 120589, 123585, 135355, 173019, 185955, 189497, 258405, 288365, 361767, 406065, 568491, 602945, 865095, 947485, 1326479, 1808835, 2842455, 3979437, 6632395, 19897185]

約数ペア:

[(1, 19897185), (3, 6632395), (5, 3979437), (7, 2842455), (11, 1808835), (15, 1326479), (21, 947485), (23, 865095), (33, 602945), (35, 568491), (49, 406065), (55, 361767), (69, 288365), (77, 258405), (105, 189497), (107, 185955), (115, 173019), (147, 135355), (161, 123585), (165, 120589), (231, 86135), (245, 81213), (253, 78645), (321, 61985), (345, 57673), (385, 51681), (483, 41195), (535, 37191), (539, 36915), (735, 27071), (749, 26565), (759, 26215), (805, 24717), (1127, 17655), (1155, 17227), (1177, 16905), (1265, 15729), (1605, 12397), (1617, 12305), (1771, 11235), (2247, 8855), (2415, 8239), (2461, 8085), (2695, 7383), (3381, 5885), (3531, 5635), (3745, 5313), (3795, 5243)]