19845441

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4091}}^1$

素因数の和:4122

約数の個数: 36

約数和(自身を含む): 36386064

約数和(自身を除く): 16540623

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 1617, 4091, 4851, 12273, 28637, 36819, 45001, 85911, 135003, 200459, 257733, 315007, 405009, 601377, 945021, 1804131, 2205049, 2835063, 6615147, 19845441]

約数ペア:

[(1, 19845441), (3, 6615147), (7, 2835063), (9, 2205049), (11, 1804131), (21, 945021), (33, 601377), (49, 405009), (63, 315007), (77, 257733), (99, 200459), (147, 135003), (231, 85911), (441, 45001), (539, 36819), (693, 28637), (1617, 12273), (4091, 4851)]