21336315

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:82

約数の個数: 128

約数和(自身を含む): 48384000

約数和(自身を除く): 27047685

約数列:

[1, 3, 5, 7, 11, 13, 15, 21, 29, 33, 35, 39, 49, 55, 65, 77, 87, 91, 105, 143, 145, 147, 165, 195, 203, 231, 245, 273, 319, 343, 377, 385, 429, 435, 455, 539, 609, 637, 715, 735, 957, 1001, 1015, 1029, 1131, 1155, 1365, 1421, 1595, 1617, 1715, 1885, 1911, 2145, 2233, 2639, 2695, 3003, 3045, 3185, 3773, 4147, 4263, 4459, 4785, 5005, 5145, 5655, 6699, 7007, 7105, 7917, 8085, 9555, 9947, 11165, 11319, 12441, 13195, 13377, 15015, 15631, 18473, 18865, 20735, 21021, 21315, 22295, 29029, 29841, 33495, 35035, 39585, 46893, 49049, 49735, 55419, 56595, 62205, 66885, 78155, 87087, 92365, 105105, 109417, 129311, 145145, 147147, 149205, 203203, 234465, 245245, 277095, 328251, 387933, 435435, 547085, 609609, 646555, 735735, 1016015, 1422421, 1641255, 1939665, 3048045, 4267263, 7112105, 21336315]

約数ペア:

[(1, 21336315), (3, 7112105), (5, 4267263), (7, 3048045), (11, 1939665), (13, 1641255), (15, 1422421), (21, 1016015), (29, 735735), (33, 646555), (35, 609609), (39, 547085), (49, 435435), (55, 387933), (65, 328251), (77, 277095), (87, 245245), (91, 234465), (105, 203203), (143, 149205), (145, 147147), (147, 145145), (165, 129311), (195, 109417), (203, 105105), (231, 92365), (245, 87087), (273, 78155), (319, 66885), (343, 62205), (377, 56595), (385, 55419), (429, 49735), (435, 49049), (455, 46893), (539, 39585), (609, 35035), (637, 33495), (715, 29841), (735, 29029), (957, 22295), (1001, 21315), (1015, 21021), (1029, 20735), (1131, 18865), (1155, 18473), (1365, 15631), (1421, 15015), (1595, 13377), (1617, 13195), (1715, 12441), (1885, 11319), (1911, 11165), (2145, 9947), (2233, 9555), (2639, 8085), (2695, 7917), (3003, 7105), (3045, 7007), (3185, 6699), (3773, 5655), (4147, 5145), (4263, 5005), (4459, 4785)]