19758414

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{137}}^1$

素因数の和:241

約数の個数: 48

約数和(自身を含む): 43887312

約数和(自身を除く): 24128898

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 137, 258, 274, 411, 559, 822, 1118, 1677, 1781, 1849, 3354, 3562, 3698, 5343, 5547, 5891, 10686, 11094, 11782, 17673, 24037, 35346, 48074, 72111, 76583, 144222, 153166, 229749, 253313, 459498, 506626, 759939, 1519878, 3293069, 6586138, 9879207, 19758414]

約数ペア:

[(1, 19758414), (2, 9879207), (3, 6586138), (6, 3293069), (13, 1519878), (26, 759939), (39, 506626), (43, 459498), (78, 253313), (86, 229749), (129, 153166), (137, 144222), (258, 76583), (274, 72111), (411, 48074), (559, 35346), (822, 24037), (1118, 17673), (1677, 11782), (1781, 11094), (1849, 10686), (3354, 5891), (3562, 5547), (3698, 5343)]