71919009

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 116742080

約数和(自身を除く): 44823071

約数列:

[1, 3, 9, 19, 27, 37, 57, 81, 111, 171, 243, 333, 421, 513, 703, 999, 1263, 1539, 2109, 2997, 3789, 4617, 6327, 7999, 8991, 11367, 15577, 18981, 23997, 34101, 46731, 56943, 71991, 102303, 140193, 170829, 215973, 295963, 420579, 647919, 887889, 1261737, 1943757, 2663667, 3785211, 7991001, 23973003, 71919009]

約数ペア:

[(1, 71919009), (3, 23973003), (9, 7991001), (19, 3785211), (27, 2663667), (37, 1943757), (57, 1261737), (81, 887889), (111, 647919), (171, 420579), (243, 295963), (333, 215973), (421, 170829), (513, 140193), (703, 102303), (999, 71991), (1263, 56943), (1539, 46731), (2109, 34101), (2997, 23997), (3789, 18981), (4617, 15577), (6327, 11367), (7999, 8991)]