20659338

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1451}}^1$

素因数の和:1579

約数の個数: 48

約数和(自身を含む): 51644736

約数和(自身を除く): 30985398

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 113, 126, 226, 339, 678, 791, 1017, 1451, 1582, 2034, 2373, 2902, 4353, 4746, 7119, 8706, 10157, 13059, 14238, 20314, 26118, 30471, 60942, 91413, 163963, 182826, 327926, 491889, 983778, 1147741, 1475667, 2295482, 2951334, 3443223, 6886446, 10329669, 20659338]

約数ペア:

[(1, 20659338), (2, 10329669), (3, 6886446), (6, 3443223), (7, 2951334), (9, 2295482), (14, 1475667), (18, 1147741), (21, 983778), (42, 491889), (63, 327926), (113, 182826), (126, 163963), (226, 91413), (339, 60942), (678, 30471), (791, 26118), (1017, 20314), (1451, 14238), (1582, 13059), (2034, 10157), (2373, 8706), (2902, 7119), (4353, 4746)]