208291239

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 332972640

約数和(自身を除く): 124681401

約数列:

[1, 3, 9, 13, 39, 83, 89, 117, 241, 249, 267, 723, 747, 801, 1079, 1157, 2169, 3133, 3237, 3471, 7387, 9399, 9711, 10413, 20003, 21449, 22161, 28197, 60009, 64347, 66483, 96031, 180027, 193041, 260039, 278837, 288093, 780117, 836511, 864279, 1780267, 2340351, 2509533, 5340801, 16022403, 23143471, 69430413, 208291239]

約数ペア:

[(1, 208291239), (3, 69430413), (9, 23143471), (13, 16022403), (39, 5340801), (83, 2509533), (89, 2340351), (117, 1780267), (241, 864279), (249, 836511), (267, 780117), (723, 288093), (747, 278837), (801, 260039), (1079, 193041), (1157, 180027), (2169, 96031), (3133, 66483), (3237, 64347), (3471, 60009), (7387, 28197), (9399, 22161), (9711, 21449), (10413, 20003)]