20408038

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1039}}^1$

素因数の和:1132

約数の個数: 32

約数和(自身を含む): 37140480

約数和(自身を除く): 16732442

約数列:

[1, 2, 7, 14, 23, 46, 61, 122, 161, 322, 427, 854, 1039, 1403, 2078, 2806, 7273, 9821, 14546, 19642, 23897, 47794, 63379, 126758, 167279, 334558, 443653, 887306, 1457717, 2915434, 10204019, 20408038]

約数ペア:

[(1, 20408038), (2, 10204019), (7, 2915434), (14, 1457717), (23, 887306), (46, 443653), (61, 334558), (122, 167279), (161, 126758), (322, 63379), (427, 47794), (854, 23897), (1039, 19642), (1403, 14546), (2078, 9821), (2806, 7273)]