2161248803

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1\times {\mathrm{641}}^1$

素因数の和:1019

約数の個数: 32

約数和(自身を含む): 2640314880

約数和(自身を除く): 479066077

約数列:

[1, 7, 19, 101, 133, 251, 641, 707, 1757, 1919, 4487, 4769, 12179, 13433, 25351, 33383, 64741, 85253, 160891, 177457, 453187, 481669, 1126237, 1230079, 3056929, 3371683, 8610553, 16249991, 21398503, 113749937, 308749829, 2161248803]

約数ペア:

[(1, 2161248803), (7, 308749829), (19, 113749937), (101, 21398503), (133, 16249991), (251, 8610553), (641, 3371683), (707, 3056929), (1757, 1230079), (1919, 1126237), (4487, 481669), (4769, 453187), (12179, 177457), (13433, 160891), (25351, 85253), (33383, 64741)]