18779733

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{541}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 33820800

約数和(自身を除く): 15041067

約数列:

[1, 3, 7, 9, 19, 21, 29, 57, 63, 87, 133, 171, 203, 261, 399, 541, 551, 609, 1197, 1623, 1653, 1827, 3787, 3857, 4869, 4959, 10279, 11361, 11571, 15689, 30837, 34083, 34713, 47067, 71953, 92511, 109823, 141201, 215859, 298091, 329469, 647577, 894273, 988407, 2086637, 2682819, 6259911, 18779733]

約数ペア:

[(1, 18779733), (3, 6259911), (7, 2682819), (9, 2086637), (19, 988407), (21, 894273), (29, 647577), (57, 329469), (63, 298091), (87, 215859), (133, 141201), (171, 109823), (203, 92511), (261, 71953), (399, 47067), (541, 34713), (551, 34083), (609, 30837), (1197, 15689), (1623, 11571), (1653, 11361), (1827, 10279), (3787, 4959), (3857, 4869)]