20815326

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1039}}^1$

素因数の和:1110

約数の個数: 64

約数和(自身を含む): 53913600

約数和(自身を除く): 33098274

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 53, 54, 63, 106, 126, 159, 189, 318, 371, 378, 477, 742, 954, 1039, 1113, 1431, 2078, 2226, 2862, 3117, 3339, 6234, 6678, 7273, 9351, 10017, 14546, 18702, 20034, 21819, 28053, 43638, 55067, 56106, 65457, 110134, 130914, 165201, 196371, 330402, 385469, 392742, 495603, 770938, 991206, 1156407, 1486809, 2312814, 2973618, 3469221, 6938442, 10407663, 20815326]

約数ペア:

[(1, 20815326), (2, 10407663), (3, 6938442), (6, 3469221), (7, 2973618), (9, 2312814), (14, 1486809), (18, 1156407), (21, 991206), (27, 770938), (42, 495603), (53, 392742), (54, 385469), (63, 330402), (106, 196371), (126, 165201), (159, 130914), (189, 110134), (318, 65457), (371, 56106), (378, 55067), (477, 43638), (742, 28053), (954, 21819), (1039, 20034), (1113, 18702), (1431, 14546), (2078, 10017), (2226, 9351), (2862, 7273), (3117, 6678), (3339, 6234)]