20342878101

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{71171}}^1$

素因数の和:71546

約数の個数: 48

約数和(自身を含む): 36269251200

約数和(自身を除く): 15926373099

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 349, 819, 1047, 2443, 3141, 4537, 7329, 13611, 21987, 31759, 40833, 71171, 95277, 213513, 285831, 498197, 640539, 925223, 1494591, 2775669, 4483773, 6476561, 8327007, 19429683, 24838679, 58289049, 74516037, 173870753, 223548111, 322902827, 521612259, 968708481, 1564836777, 2260319789, 2906125443, 6780959367, 20342878101]

約数ペア:

[(1, 20342878101), (3, 6780959367), (7, 2906125443), (9, 2260319789), (13, 1564836777), (21, 968708481), (39, 521612259), (63, 322902827), (91, 223548111), (117, 173870753), (273, 74516037), (349, 58289049), (819, 24838679), (1047, 19429683), (2443, 8327007), (3141, 6476561), (4537, 4483773), (7329, 2775669), (13611, 1494591), (21987, 925223), (31759, 640539), (40833, 498197), (71171, 285831), (95277, 213513)]