257912109

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{10859}}^1$

素因数の和:10914

約数の個数: 48

約数和(自身を含む): 474364800

約数和(自身を除く): 216452691

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 87, 91, 117, 203, 261, 273, 377, 609, 819, 1131, 1827, 2639, 3393, 7917, 10859, 23751, 32577, 76013, 97731, 141167, 228039, 314911, 423501, 684117, 944733, 988169, 1270503, 2204377, 2834199, 2964507, 4093843, 6613131, 8893521, 12281529, 19839393, 28656901, 36844587, 85970703, 257912109]

約数ペア:

[(1, 257912109), (3, 85970703), (7, 36844587), (9, 28656901), (13, 19839393), (21, 12281529), (29, 8893521), (39, 6613131), (63, 4093843), (87, 2964507), (91, 2834199), (117, 2204377), (203, 1270503), (261, 988169), (273, 944733), (377, 684117), (609, 423501), (819, 314911), (1131, 228039), (1827, 141167), (2639, 97731), (3393, 76013), (7917, 32577), (10859, 23751)]