71697231

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1$

素因数の和:605

約数の個数: 40

約数和(自身を含む): 112559040

約数和(自身を除く): 40861809

約数列:

[1, 3, 9, 27, 37, 47, 81, 111, 141, 333, 423, 509, 999, 1269, 1527, 1739, 2997, 3807, 4581, 5217, 13743, 15651, 18833, 23923, 41229, 46953, 56499, 71769, 140859, 169497, 215307, 508491, 645921, 885151, 1525473, 1937763, 2655453, 7966359, 23899077, 71697231]

約数ペア:

[(1, 71697231), (3, 23899077), (9, 7966359), (27, 2655453), (37, 1937763), (47, 1525473), (81, 885151), (111, 645921), (141, 508491), (333, 215307), (423, 169497), (509, 140859), (999, 71769), (1269, 56499), (1527, 46953), (1739, 41229), (2997, 23923), (3807, 18833), (4581, 15651), (5217, 13743)]