20985384

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5431}}^1$

素因数の和:5470

約数の個数: 64

約数和(自身を含む): 62576640

約数和(自身を除く): 41591256

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 23, 24, 28, 42, 46, 56, 69, 84, 92, 138, 161, 168, 184, 276, 322, 483, 552, 644, 966, 1288, 1932, 3864, 5431, 10862, 16293, 21724, 32586, 38017, 43448, 65172, 76034, 114051, 124913, 130344, 152068, 228102, 249826, 304136, 374739, 456204, 499652, 749478, 874391, 912408, 999304, 1498956, 1748782, 2623173, 2997912, 3497564, 5246346, 6995128, 10492692, 20985384]

約数ペア:

[(1, 20985384), (2, 10492692), (3, 6995128), (4, 5246346), (6, 3497564), (7, 2997912), (8, 2623173), (12, 1748782), (14, 1498956), (21, 999304), (23, 912408), (24, 874391), (28, 749478), (42, 499652), (46, 456204), (56, 374739), (69, 304136), (84, 249826), (92, 228102), (138, 152068), (161, 130344), (168, 124913), (184, 114051), (276, 76034), (322, 65172), (483, 43448), (552, 38017), (644, 32586), (966, 21724), (1288, 16293), (1932, 10862), (3864, 5431)]