21131901441

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3691}}^1\times {\mathrm{4783}}^1$

素因数の和:8506

約数の個数: 48

約数和(自身を含む): 36738058240

約数和(自身を除く): 15606156799

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 3691, 4783, 11073, 14349, 25837, 33219, 33481, 43047, 70129, 77511, 90877, 100443, 210387, 232533, 272631, 301329, 490903, 631161, 636139, 817893, 1472709, 1908417, 4418127, 5725251, 17654053, 52962159, 123578371, 158886477, 335427007, 370735113, 1006281021, 1112205339, 2347989049, 3018843063, 7043967147, 21131901441]

約数ペア:

[(1, 21131901441), (3, 7043967147), (7, 3018843063), (9, 2347989049), (19, 1112205339), (21, 1006281021), (57, 370735113), (63, 335427007), (133, 158886477), (171, 123578371), (399, 52962159), (1197, 17654053), (3691, 5725251), (4783, 4418127), (11073, 1908417), (14349, 1472709), (25837, 817893), (33219, 636139), (33481, 631161), (43047, 490903), (70129, 301329), (77511, 272631), (90877, 232533), (100443, 210387)]