21066045

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 128

約数和(自身を含む): 47996928

約数和(自身を除く): 26930883

約数列:

[1, 3, 5, 7, 11, 13, 15, 21, 23, 33, 35, 39, 55, 61, 65, 69, 77, 91, 105, 115, 143, 161, 165, 183, 195, 231, 253, 273, 299, 305, 345, 385, 427, 429, 455, 483, 671, 715, 759, 793, 805, 897, 915, 1001, 1155, 1265, 1281, 1365, 1403, 1495, 1771, 2013, 2093, 2135, 2145, 2379, 2415, 3003, 3289, 3355, 3795, 3965, 4209, 4485, 4697, 5005, 5313, 5551, 6279, 6405, 7015, 8723, 8855, 9821, 9867, 10065, 10465, 11895, 14091, 15015, 15433, 16445, 16653, 18239, 21045, 23023, 23485, 26169, 26565, 27755, 29463, 31395, 43615, 46299, 49105, 49335, 54717, 61061, 69069, 70455, 77165, 83265, 91195, 108031, 115115, 127673, 130845, 147315, 183183, 200629, 231495, 273585, 305305, 324093, 345345, 383019, 540155, 601887, 638365, 915915, 1003145, 1404403, 1620465, 1915095, 3009435, 4213209, 7022015, 21066045]

約数ペア:

[(1, 21066045), (3, 7022015), (5, 4213209), (7, 3009435), (11, 1915095), (13, 1620465), (15, 1404403), (21, 1003145), (23, 915915), (33, 638365), (35, 601887), (39, 540155), (55, 383019), (61, 345345), (65, 324093), (69, 305305), (77, 273585), (91, 231495), (105, 200629), (115, 183183), (143, 147315), (161, 130845), (165, 127673), (183, 115115), (195, 108031), (231, 91195), (253, 83265), (273, 77165), (299, 70455), (305, 69069), (345, 61061), (385, 54717), (427, 49335), (429, 49105), (455, 46299), (483, 43615), (671, 31395), (715, 29463), (759, 27755), (793, 26565), (805, 26169), (897, 23485), (915, 23023), (1001, 21045), (1155, 18239), (1265, 16653), (1281, 16445), (1365, 15433), (1403, 15015), (1495, 14091), (1771, 11895), (2013, 10465), (2093, 10065), (2135, 9867), (2145, 9821), (2379, 8855), (2415, 8723), (3003, 7015), (3289, 6405), (3355, 6279), (3795, 5551), (3965, 5313), (4209, 5005), (4485, 4697)]