20053761

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 16234239

約数列:

[1, 3, 7, 13, 17, 21, 29, 39, 51, 87, 91, 119, 149, 203, 221, 273, 357, 377, 447, 493, 609, 663, 1043, 1131, 1479, 1547, 1937, 2533, 2639, 3129, 3451, 4321, 4641, 5811, 6409, 7599, 7917, 10353, 12963, 13559, 17731, 19227, 30247, 32929, 40677, 44863, 53193, 56173, 73457, 90741, 98787, 134589, 168519, 220371, 230503, 393211, 514199, 691509, 954941, 1179633, 1542597, 2864823, 6684587, 20053761]

約数ペア:

[(1, 20053761), (3, 6684587), (7, 2864823), (13, 1542597), (17, 1179633), (21, 954941), (29, 691509), (39, 514199), (51, 393211), (87, 230503), (91, 220371), (119, 168519), (149, 134589), (203, 98787), (221, 90741), (273, 73457), (357, 56173), (377, 53193), (447, 44863), (493, 40677), (609, 32929), (663, 30247), (1043, 19227), (1131, 17731), (1479, 13559), (1547, 12963), (1937, 10353), (2533, 7917), (2639, 7599), (3129, 6409), (3451, 5811), (4321, 4641)]