21271194

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{8039}}^1$

素因数の和:8064

約数の個数: 48

約数和(自身を含む): 54993600

約数和(自身を除く): 33722406

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 126, 147, 189, 294, 378, 441, 882, 1323, 2646, 8039, 16078, 24117, 48234, 56273, 72351, 112546, 144702, 168819, 217053, 337638, 393911, 434106, 506457, 787822, 1012914, 1181733, 1519371, 2363466, 3038742, 3545199, 7090398, 10635597, 21271194]

約数ペア:

[(1, 21271194), (2, 10635597), (3, 7090398), (6, 3545199), (7, 3038742), (9, 2363466), (14, 1519371), (18, 1181733), (21, 1012914), (27, 787822), (42, 506457), (49, 434106), (54, 393911), (63, 337638), (98, 217053), (126, 168819), (147, 144702), (189, 112546), (294, 72351), (378, 56273), (441, 48234), (882, 24117), (1323, 16078), (2646, 8039)]