19505871

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4021}}^1$

素因数の和:4052

約数の個数: 36

約数和(自身を含む): 35763624

約数和(自身を除く): 16257753

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 1617, 4021, 4851, 12063, 28147, 36189, 44231, 84441, 132693, 197029, 253323, 309617, 398079, 591087, 928851, 1773261, 2167319, 2786553, 6501957, 19505871]

約数ペア:

[(1, 19505871), (3, 6501957), (7, 2786553), (9, 2167319), (11, 1773261), (21, 928851), (33, 591087), (49, 398079), (63, 309617), (77, 253323), (99, 197029), (147, 132693), (231, 84441), (441, 44231), (539, 36189), (693, 28147), (1617, 12063), (4021, 4851)]