21414645

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:112

約数の個数: 128

約数和(自身を含む): 48660480

約数和(自身を除く): 27245835

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 31, 35, 43, 45, 51, 63, 85, 93, 105, 119, 129, 135, 153, 155, 189, 215, 217, 255, 279, 301, 315, 357, 387, 459, 465, 527, 595, 645, 651, 731, 765, 837, 903, 945, 1071, 1085, 1161, 1333, 1395, 1505, 1581, 1785, 1935, 1953, 2193, 2295, 2635, 2709, 3213, 3255, 3655, 3689, 3999, 4185, 4515, 4743, 5117, 5355, 5805, 5859, 6579, 6665, 7905, 8127, 9331, 9765, 10965, 11067, 11997, 13545, 14229, 15351, 16065, 18445, 19737, 19995, 22661, 23715, 25585, 27993, 29295, 32895, 33201, 35991, 40635, 46053, 46655, 55335, 59985, 67983, 71145, 76755, 83979, 98685, 99603, 113305, 138159, 139965, 158627, 166005, 179955, 203949, 230265, 251937, 339915, 419895, 475881, 498015, 611847, 690795, 793135, 1019745, 1259685, 1427643, 2379405, 3059235, 4282929, 7138215, 21414645]

約数ペア:

[(1, 21414645), (3, 7138215), (5, 4282929), (7, 3059235), (9, 2379405), (15, 1427643), (17, 1259685), (21, 1019745), (27, 793135), (31, 690795), (35, 611847), (43, 498015), (45, 475881), (51, 419895), (63, 339915), (85, 251937), (93, 230265), (105, 203949), (119, 179955), (129, 166005), (135, 158627), (153, 139965), (155, 138159), (189, 113305), (215, 99603), (217, 98685), (255, 83979), (279, 76755), (301, 71145), (315, 67983), (357, 59985), (387, 55335), (459, 46655), (465, 46053), (527, 40635), (595, 35991), (645, 33201), (651, 32895), (731, 29295), (765, 27993), (837, 25585), (903, 23715), (945, 22661), (1071, 19995), (1085, 19737), (1161, 18445), (1333, 16065), (1395, 15351), (1505, 14229), (1581, 13545), (1785, 11997), (1935, 11067), (1953, 10965), (2193, 9765), (2295, 9331), (2635, 8127), (2709, 7905), (3213, 6665), (3255, 6579), (3655, 5859), (3689, 5805), (3999, 5355), (4185, 5117), (4515, 4743)]