21584745

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:292

約数の個数: 96

約数和(自身を含む): 48263040

約数和(自身を除く): 26678295

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 49, 63, 65, 91, 105, 117, 135, 147, 189, 195, 245, 251, 273, 315, 351, 441, 455, 585, 637, 735, 753, 819, 945, 1255, 1323, 1365, 1755, 1757, 1911, 2205, 2259, 2457, 3185, 3263, 3765, 4095, 5271, 5733, 6615, 6777, 8785, 9555, 9789, 11295, 12285, 12299, 15813, 16315, 17199, 22841, 26355, 28665, 29367, 33885, 36897, 47439, 48945, 61495, 68523, 79065, 85995, 88101, 110691, 114205, 146835, 159887, 184485, 205569, 237195, 332073, 342615, 440505, 479661, 553455, 616707, 799435, 1027845, 1438983, 1660365, 2398305, 3083535, 4316949, 7194915, 21584745]

約数ペア:

[(1, 21584745), (3, 7194915), (5, 4316949), (7, 3083535), (9, 2398305), (13, 1660365), (15, 1438983), (21, 1027845), (27, 799435), (35, 616707), (39, 553455), (45, 479661), (49, 440505), (63, 342615), (65, 332073), (91, 237195), (105, 205569), (117, 184485), (135, 159887), (147, 146835), (189, 114205), (195, 110691), (245, 88101), (251, 85995), (273, 79065), (315, 68523), (351, 61495), (441, 48945), (455, 47439), (585, 36897), (637, 33885), (735, 29367), (753, 28665), (819, 26355), (945, 22841), (1255, 17199), (1323, 16315), (1365, 15813), (1755, 12299), (1757, 12285), (1911, 11295), (2205, 9789), (2259, 9555), (2457, 8785), (3185, 6777), (3263, 6615), (3765, 5733), (4095, 5271)]